Previous value: -"Optional groups: origins (every contributed origin solution, no extra request), magnitudes and arrivals (one shared phase-data download; every arrival of the preferred origin, nearest first), aftershock_forecast (one extra request). Omit for the default response."New value: +"Optional groups: origins (every contributed origin solution, no extra request), magnitudes and arrivals (one shared phase-data download; every arrival of the preferred origin, nearest first), aftershock_forecast (one extra request), pager (fatality and economic-loss brackets with probabilities, and people exposed at each intensity by country; two or three extra requests). Omit for the default response."

Previous value: -[
-  "origins",
-  "magnitudes",
-  "arrivals",
-  "aftershock_forecast"
-]New value: +[
+  "origins",
+  "magnitudes",
+  "arrivals",
+  "aftershock_forecast",
+  "pager"
+]

Previous value: -"PAGER assessment; fatality/economic-loss brackets are in report_url, not this projection. Absent without projected fields."New value: +"PAGER alert and report link. The fatality and economic-loss brackets behind the alert, and population exposure, come from the pager include group of earthquake_get_event. Absent without projected fields."

Previous value: -"Machine-readable failure mode. Declared by this tool: `event_deleted`: USGS reports that the requested event was deleted. `not_found`: No USGS or EMSC event matches the provided event_id. `source_unavailable`: The USGS or EMSC event API returns a 5xx, serves HTML, or is unreachable. `source_timeout`: The USGS or EMSC event API did not answer before the request deadline. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `event_deleted`: USGS reports that the requested event was deleted. `not_found`: No USGS or EMSC event matches the provided event_id. `source_unavailable`: The USGS or EMSC event API returns a 5xx, serves HTML or an unreadable body, or is unreachable. `source_timeout`: The USGS or EMSC event API did not answer before the request deadline. Other values are possible when a failure originates below the handler."

Previous value: -"Maximum ShakeMap Modified Mercalli intensity (0–12); null without a ShakeMap or for EMSC."New value: +"Maximum ShakeMap Modified Mercalli intensity (1–12); null without a ShakeMap, when the ShakeMap computed no intensity, or for EMSC."

Previous value: -"Review state: automatic (unverified), reviewed (analyst checked), or deleted. Null if unpublished (EMSC); such solutions remain unverified and subject to revision."New value: +"Review state: automatic (unverified), reviewed (analyst checked), or deleted. Null if unpublished (EMSC, or a USGS record without one of these values); such solutions remain unverified and subject to revision."

Added value: +{
+  "additionalProperties": false,
+  "description": "USGS PAGER loss estimates and population exposure; values change with each PAGER update.",
+  "properties": {
+    "economic": {
+      "additionalProperties": false,
+      "description": "Estimated economic losses.",
+      "properties": {
+        "bins": {
+          "description": "Every bracket in upstream order.",
+          "items": {
+            "additionalProperties": false,
+            "description": "One probability bracket.",
+            "properties": {
+              "color": {
+                "description": "Alert color of this bracket. Absent when unpublished.",
+                "type": "string"
+              },
+              "max": {
+                "description": "Upper bound, exclusive, in millions of USD.",
+                "type": "number"
+              },
+              "min": {
+                "description": "Lower bound, inclusive, in millions of USD.",
+                "type": "number"
+              },
+              "probability": {
+                "description": "Probability (0–1) that the outcome falls in this bracket.",
+                "type": "number"
+              }
+            },
+            "required": [
+              "min",
+              "max",
+              "probability"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "level": {
+          "description": "Alert level this estimate sets — \"green\", \"yellow\", \"orange\", or \"red\"; the event alert is the higher of the two estimates. Absent when unpublished.",
+          "type": "string"
+        }
+      },
+      "required": [
+        "bins"
+      ],
+      "type": "object"
+    },
+    "exposure": {
+      "additionalProperties": false,
+      "description": "Estimated population exposed to each shaking intensity.",
+      "properties": {
+        "countries": {
+          "description": "Every country row in published order, all-zero rows included; empty when PAGER lists none.",
+          "items": {
+            "additionalProperties": false,
+            "description": "One country row.",
+            "properties": {
+              "country_code": {
+                "description": "Two-letter country code as PAGER publishes it; \"UK\" marks areas assigned to no country, not the United Kingdom (GB).",
+                "type": "string"
+              },
+              "population": {
+                "description": "Estimated people exposed at each intensity in this country.",
+                "items": {
+                  "type": "number"
+                },
+                "type": "array"
+              }
+            },
+            "required": [
+              "country_code",
+              "population"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "mmi": {
+          "description": "Modified Mercalli intensity of each column, in published order.",
+          "items": {
+            "type": "number"
+          },
+          "type": "array"
+        },
+        "population": {
+          "description": "Estimated people exposed at each intensity, all areas combined.",
+          "items": {
+            "type": "number"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "mmi",
+        "population",
+        "countries"
+      ],
+      "type": "object"
+    },
+    "fatality": {
+      "additionalProperties": false,
+      "description": "Estimated shaking-related fatalities.",
+      "properties": {
+        "bins": {
+          "description": "Every bracket in upstream order.",
+          "items": {
+            "additionalProperties": false,
+            "description": "One probability bracket.",
+            "properties": {
+              "color": {
+                "description": "Alert color of this bracket. Absent when unpublished.",
+                "type": "string"
+              },
+              "max": {
+                "description": "Upper bound, exclusive, in deaths.",
+                "type": "number"
+              },
+              "min": {
+                "description": "Lower bound, inclusive, in deaths.",
+                "type": "number"
+              },
+              "probability": {
+                "description": "Probability (0–1) that the outcome falls in this bracket.",
+                "type": "number"
+              }
+            },
+            "required": [
+              "min",
+              "max",
+              "probability"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "level": {
+          "description": "Alert level this estimate sets — \"green\", \"yellow\", \"orange\", or \"red\"; the event alert is the higher of the two estimates. Absent when unpublished.",
+          "type": "string"
+        }
+      },
+      "required": [
+        "bins"
+      ],
+      "type": "object"
+    },
+    "impact": {
+      "description": "PAGER impact statements in published order; absent when none is published.",
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "fatality",
+    "economic",
+    "exposure"
+  ],
+  "type": "object"
+}

Previous value: -[
-  "origins",
-  "magnitudes",
-  "arrivals",
-  "aftershock_forecast"
-]New value: +[
+  "origins",
+  "magnitudes",
+  "arrivals",
+  "aftershock_forecast",
+  "pager"
+]

Previous value: -"not_published: the event has no product for it. fetch_failed: the product exists but could not be fetched or parsed."New value: +"not_published: the event has no product for it, or its product lacks the files the group reads. fetch_failed: the product exists but could not be fetched or parsed."

Previous value: -"USGS event ID, e.g. \"hv74966427\" or \"us6000sznj\". Found in the \"id\" field of earthquake_get_feed and earthquake_search_events results."New value: +"USGS event ID, e.g. \"hv74966427\" or \"us6000sznj\", or EMSC event ID, e.g. \"20190706_0000043\". Found in the \"id\" field of earthquake_get_feed and earthquake_search_events results."

Added value: +{
+  "description": "Optional groups: origins (every contributed origin solution, no extra request), magnitudes and arrivals (one shared phase-data download; every arrival of the preferred origin, nearest first), aftershock_forecast (one extra request). Omit for the default response.",
+  "items": {
+    "enum": [
+      "origins",
+      "magnitudes",
+      "arrivals",
+      "aftershock_forecast"
+    ],
+    "type": "string"
+  },
+  "type": "array"
+}

Added value: +{
+  "additionalProperties": false,
+  "description": "USGS Operational Aftershock Forecast; probabilities change with each update.",
+  "properties": {
+    "advisory_window": {
+      "description": "Window USGS headlines in its advisory, e.g. \"1 Week\".",
+      "type": "string"
+    },
+    "created": {
+      "description": "ISO 8601 UTC time the forecast was issued.",
+      "type": "string"
+    },
+    "expires": {
+      "description": "ISO 8601 UTC expiry of the forecast.",
+      "type": "string"
+    },
+    "next_update": {
+      "description": "ISO 8601 UTC time of the next scheduled update; absent once updates stop.",
+      "type": "string"
+    },
+    "windows": {
+      "description": "Forecast windows in upstream order.",
+      "items": {
+        "additionalProperties": false,
+        "description": "One forecast window.",
+        "properties": {
+          "above_mainshock": {
+            "additionalProperties": false,
+            "description": "Chance of an aftershock as large as the mainshock; absent when unpublished.",
+            "properties": {
+              "magnitude": {
+                "description": "Mainshock magnitude.",
+                "type": "number"
+              },
+              "probability": {
+                "description": "Probability (0–1) of an aftershock at or above the mainshock magnitude.",
+                "type": "number"
+              }
+            },
+            "required": [
+              "magnitude",
+              "probability"
+            ],
+            "type": "object"
+          },
+          "bins": {
+            "description": "Magnitude bins in upstream order.",
+            "items": {
+              "additionalProperties": false,
+              "description": "One magnitude bin.",
+              "properties": {
+                "count_median": {
+                  "description": "Median expected count.",
+                  "type": "number"
+                },
+                "count_p95_max": {
+                  "description": "Upper bound of the 95% count range.",
+                  "type": "number"
+                },
+                "count_p95_min": {
+                  "description": "Lower bound of the 95% count range.",
+                  "type": "number"
+                },
+                "magnitude": {
+                  "description": "Minimum magnitude of this bin.",
+                  "type": "number"
+                },
+                "probability": {
+                  "description": "Probability (0–1) of at least one aftershock at or above it.",
+                  "type": "number"
+                }
+              },
+              "required": [
+                "magnitude",
+                "probability"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "end": {
+            "description": "ISO 8601 UTC window end.",
+            "type": "string"
+          },
+          "label": {
+            "description": "Window label, e.g. \"1 Day\", \"1 Week\".",
+            "type": "string"
+          },
+          "start": {
+            "description": "ISO 8601 UTC window start (the forecast issue time, not now).",
+            "type": "string"
+          }
+        },
+        "required": [
+          "label",
+          "start",
+          "end",
+          "bins"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "advisory_window",
+    "created",
+    "expires",
+    "windows"
+  ],
+  "type": "object"
+}

Added value: +{
+  "description": "All phase arrivals of the preferred origin, sorted by distance ascending.",
+  "items": {
+    "additionalProperties": false,
+    "description": "One phase arrival joined to its pick.",
+    "properties": {
+      "azimuth_deg": {
+        "description": "Azimuth from epicenter to station, degrees.",
+        "type": "number"
+      },
+      "channel": {
+        "description": "SEED channel code.",
+        "type": "string"
+      },
+      "distance_deg": {
+        "description": "Epicentral distance, degrees.",
+        "type": "number"
+      },
+      "location": {
+        "description": "SEED location code as published; \"\" and \"--\" both mean blank.",
+        "type": "string"
+      },
+      "network": {
+        "description": "SEED network code.",
+        "type": "string"
+      },
+      "phase": {
+        "description": "Phase name, e.g. P, Pn, S.",
+        "type": "string"
+      },
+      "station": {
+        "description": "SEED station code.",
+        "type": "string"
+      },
+      "time": {
+        "description": "ISO 8601 UTC pick time.",
+        "type": "string"
+      },
+      "time_residual_s": {
+        "description": "Travel-time residual, seconds.",
+        "type": "number"
+      },
+      "time_weight": {
+        "description": "Weight of the arrival time in the location.",
+        "type": "number"
+      }
+    },
+    "type": "object"
+  },
+  "type": "array"
+}

Added value: +{
+  "description": "How the depth was set, as published, e.g. \"from location\" or \"operator assigned\" (fixed, not solved for).",
+  "type": "string"
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `event_deleted`: USGS reports that the requested event was deleted. `not_found`: No event matches the provided event_id. `source_unavailable`: The USGS event API returns a 5xx, serves HTML, or is unreachable. `source_timeout`: The USGS event API did not answer before the request deadline. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `event_deleted`: USGS reports that the requested event was deleted. `not_found`: No USGS or EMSC event matches the provided event_id. `source_unavailable`: The USGS or EMSC event API returns a 5xx, serves HTML, or is unreachable. `source_timeout`: The USGS or EMSC event API did not answer before the request deadline. Other values are possible when a failure originates below the handler."

Added value: +{
+  "description": "Other network IDs USGS lists for this event, in upstream order; earthquake_get_event accepts them. Absent when USGS lists none, and for EMSC events.",
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

Added value: +{
+  "description": "Magnitude solutions from the preferred phase-data product, in document order.",
+  "items": {
+    "additionalProperties": false,
+    "description": "One event-level magnitude solution.",
+    "properties": {
+      "agency": {
+        "description": "Agency that computed the magnitude.",
+        "type": "string"
+      },
+      "evaluation_mode": {
+        "description": "QuakeML evaluation mode: manual or automatic.",
+        "type": "string"
+      },
+      "evaluation_status": {
+        "description": "QuakeML evaluation status, e.g. reviewed.",
+        "type": "string"
+      },
+      "is_preferred": {
+        "description": "True for the document's preferred magnitude.",
+        "type": "boolean"
+      },
+      "station_count": {
+        "description": "Stations contributing to this magnitude.",
+        "type": "number"
+      },
+      "type": {
+        "description": "Magnitude type, e.g. Mww, mb, Ml.",
+        "type": "string"
+      },
+      "value": {
+        "description": "Magnitude value.",
+        "type": "number"
+      }
+    },
+    "required": [
+      "is_preferred"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

Added value: +{
+  "description": "Every origin product, preferred first. Present when requested and published.",
+  "items": {
+    "additionalProperties": false,
+    "description": "One origin solution from an origin product.",
+    "properties": {
+      "azimuthal_gap_deg": {
+        "description": "Largest azimuthal gap, degrees.",
+        "type": "number"
+      },
+      "depth_error_km": {
+        "description": "Depth uncertainty, km.",
+        "type": "number"
+      },
+      "depth_km": {
+        "description": "Hypocenter depth, km.",
+        "type": "number"
+      },
+      "depth_type": {
+        "description": "How the depth was set, as published, e.g. \"from location\" or \"operator assigned\".",
+        "type": "string"
+      },
+      "evaluation_status": {
+        "description": "QuakeML evaluation status, e.g. final.",
+        "type": "string"
+      },
+      "event_id": {
+        "description": "Contributing network's ID for the event.",
+        "type": "string"
+      },
+      "horizontal_error_km": {
+        "description": "Horizontal location uncertainty, km.",
+        "type": "number"
+      },
+      "is_preferred": {
+        "description": "True for the origin USGS prefers (listed first).",
+        "type": "boolean"
+      },
+      "latitude": {
+        "description": "Epicenter latitude, decimal degrees.",
+        "type": "number"
+      },
+      "longitude": {
+        "description": "Epicenter longitude, decimal degrees.",
+        "type": "number"
+      },
+      "magnitude": {
+        "description": "Magnitude published with this origin.",
+        "type": "number"
+      },
+      "magnitude_type": {
+        "description": "Magnitude type, e.g. mww, mb, Mi.",
+        "type": "string"
+      },
+      "minimum_distance_deg": {
+        "description": "Distance to the nearest station, degrees.",
+        "type": "number"
+      },
+      "num_phases_used": {
+        "description": "Phases used in the location.",
+        "type": "number"
+      },
+      "num_stations_used": {
+        "description": "Stations used in the location.",
+        "type": "number"
+      },
+      "review_status": {
+        "description": "Review status as published by the network.",
+        "type": "string"
+      },
+      "source": {
+        "description": "Network that contributed this origin product.",
+        "type": "string"
+      },
+      "standard_error_s": {
+        "description": "RMS travel-time residual, seconds.",
+        "type": "number"
+      },
+      "time": {
+        "description": "ISO 8601 UTC origin time.",
+        "type": "string"
+      }
+    },
+    "required": [
+      "is_preferred"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

Added value: +{
+  "description": "Requested groups not returned, with the reason. Absent when all were returned.",
+  "items": {
+    "additionalProperties": false,
+    "description": "One requested group that was not returned.",
+    "properties": {
+      "group": {
+        "description": "The requested group.",
+        "enum": [
+          "origins",
+          "magnitudes",
+          "arrivals",
+          "aftershock_forecast"
+        ],
+        "type": "string"
+      },
+      "reason": {
+        "description": "not_published: the event has no product for it. fetch_failed: the product exists but could not be fetched or parsed.",
+        "enum": [
+          "not_published",
+          "fetch_failed"
+        ],
+        "type": "string"
+      }
+    },
+    "required": [
+      "group",
+      "reason"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

Added value: +1

Previous value: -"Analysis products USGS attached to this event. Absent when the event carries none — that means no product was produced, not that impact was zero."New value: +"Projected USGS analysis products. Absent when no projected field is available; absence does not mean impact was zero."

Previous value: -"Felt-report summary. Absent when no DYFI product exists for the event."New value: +"Felt-report summary. Absent without projected fields."

Previous value: -"Number of \"Did You Feel It?\" reports the public submitted."New value: +"Public DYFI (Did You Feel It?) report count."

Previous value: -"Finite-fault rupture model. Produced only for large events."New value: +"Finite-fault rupture model for large events; absent without projected fields."

Previous value: -"Secondary-hazard alert levels. Absent when no ground-failure model was run."New value: +"Secondary-hazard alert levels. Absent without projected fields."

Previous value: -"PAGER impact assessment. Estimated fatality and economic-loss brackets live in a separate content file and are not part of this response — fetch report_url for them."New value: +"PAGER assessment; fatality/economic-loss brackets are in report_url, not this projection. Absent without projected fields."

Previous value: -"Focal-mechanism solution. Absent for events with no moment-tensor inversion."New value: +"Focal mechanism; absent without projected fields."

Previous value: -"Centroid depth in kilometers derived from the moment-tensor inversion."New value: +"Moment-tensor centroid depth, km."

Previous value: -"First nodal plane of the focal mechanism. Either plane can be the true fault."New value: +"First nodal plane; either plane may be the fault."

Previous value: -"Slip direction in degrees (-180 to 180). Near 90 is reverse faulting, near -90 normal, near 0 or 180 strike-slip."New value: +"Slip direction, degrees (-180..180): ~90 reverse, ~-90 normal, ~0/180 strike-slip."

Previous value: -"Second nodal plane — the auxiliary solution, indistinguishable from the first on seismic data alone."New value: +"Auxiliary nodal plane; seismic data alone cannot distinguish the true fault."

Previous value: -"Slip direction in degrees (-180 to 180). Near 90 is reverse faulting, near -90 normal, near 0 or 180 strike-slip."New value: +"Slip direction, degrees (-180..180): ~90 reverse, ~-90 normal, ~0/180 strike-slip."

Previous value: -"Scalar seismic moment in newton-metres — the physical size of the rupture."New value: +"Scalar seismic moment, newton-metres."

Previous value: -"Location-quality metrics for the preferred origin."New value: +"Location-quality metrics for the preferred origin; absent without projected fields."

Previous value: -"Largest azimuthal gap between stations, in degrees. Gaps above ~180 make the location poorly constrained."New value: +"Largest station azimuthal gap, degrees; >~180 means poorly constrained location."

Previous value: -"Review state of the origin solution as the contributing network published it."New value: +"Origin review state published by its network."

Previous value: -"ShakeMap modeled ground-motion summary. Absent when no ShakeMap was produced."New value: +"ShakeMap modeled ground-motion summary. Absent without projected fields."

Added value: +{
+  "description": "ShakeMap producer code version reported by USGS.",
+  "type": "string"
+}

Previous value: -"Maximum modeled peak ground acceleration, in g — a fraction of standard gravity, as USGS ShakeMap publishes it (0.4 is four tenths of g)."New value: +"Maximum modeled peak ground acceleration, in g (fraction of standard gravity)."

Previous value: -"Machine-readable failure mode. Declared by this tool: `not_found`: No event matches the provided event_id. `source_unavailable`: The USGS event API returns a 5xx, serves HTML, or is unreachable. `source_timeout`: The USGS event API did not answer before the request deadline. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `event_deleted`: USGS reports that the requested event was deleted. `not_found`: No event matches the provided event_id. `source_unavailable`: The USGS event API returns a 5xx, serves HTML, or is unreachable. `source_timeout`: The USGS event API did not answer before the request deadline. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "not_found",
-  "source_unavailable",
-  "source_timeout"
-]New value: +[
+  "event_deleted",
+  "not_found",
+  "source_unavailable",
+  "source_timeout"
+]

Previous value: -"PAGER estimated impact alert level. Null when USGS ran no PAGER assessment, and always null for EMSC, which publishes no such field."New value: +"PAGER estimated impact; null without an assessment or for EMSC."

Previous value: -"Code of the agency or network the source names as authoritative for this solution, e.g. \"NEIC\", \"BMKG\", \"NDI\" from EMSC or \"us\", \"ci\", \"ak\" from USGS. Absent when the source reports none."New value: +"Authoritative agency/network code (EMSC auth or USGS net); absent if unpublished."

Previous value: -"Maximum reported intensity (Community Decimal Intensity, 0–12 scale), derived from DYFI responses. Null when USGS computed no DYFI intensity, and always null for EMSC, which publishes no such field."New value: +"Maximum DYFI Community Decimal Intensity (0–12); null if uncomputed or unsupported (EMSC)."

Previous value: -"Hypocenter depth in kilometers. Shallow (<70 km), intermediate (70–300 km), or deep (>300 km). Null for historical events where depth was not measured."New value: +"Hypocenter depth in km; null if unmeasured."

Previous value: -"How certain the source is of event_type: \"known\" (asserted), \"suspected\", \"unknown\", or \"unreported\". EMSC publishes this as the first character of its event-type code — a suspected explosion is not a confirmed one, and this is the only field that says so. Absent for USGS, which publishes no certainty axis, and absent for an EMSC code outside the published nomenclature."New value: +"EMSC classification certainty: known (asserted), suspected, unknown, or unreported. Suspected is not confirmed. Absent for USGS and unrecognized EMSC codes."

Previous value: -"What kind of event this is, in one vocabulary whichever source served it — the QuakeML type names USGS publishes (\"earthquake\", \"quarry blast\", \"explosion\", \"ice quake\"). EMSC's two-character code is decoded to the same names, so the same event carries the same value from either source; how sure the source is rides on event_certainty instead. A code outside the published nomenclature is forwarded verbatim rather than guessed at. Not every record in either catalog is a tectonic earthquake. Absent when the source publishes no classification."New value: +"QuakeML classification (earthquake, quarry blast, explosion, etc.). EMSC codes decode to USGS names; unknown codes pass through verbatim. Certainty is separate. Absent if unpublished; either catalog includes non-tectonic events."

Previous value: -"Number of DYFI (Did You Feel It?) responses. Null when USGS has received no reports for the event, and always null for EMSC, which publishes no DYFI field — a null is not evidence the event went unfelt."New value: +"DYFI (Did You Feel It?) response count; null if no USGS reports or source has no DYFI (EMSC). Null does not mean unfelt."

Previous value: -"Preferred magnitude value. Null when no magnitude was computed for the event (the title renders it as \"M ?\")."New value: +"Preferred magnitude; null if not computed (title: \"M ?\")."

Previous value: -"Maximum ShakeMap instrumental intensity (Modified Mercalli, 0–12 scale). Null when USGS produced no ShakeMap for the event, and always null for EMSC, which publishes no such field."New value: +"Maximum ShakeMap Modified Mercalli intensity (0–12); null without a ShakeMap or for EMSC."

Previous value: -"USGS significance score (0–2000+). Combines magnitude, felt reports, PAGER. Null when USGS computed no score, and always null for EMSC, which publishes no such field."New value: +"USGS significance (0–2000+), combining magnitude, felt reports and PAGER; null if uncomputed or for EMSC."

Previous value: -"Upstream catalog this solution came from, e.g. \"EMSC-RTS\" (EMSC real-time seismicity, revised as analysis continues). Absent for USGS, which publishes no catalog identifier on event records."New value: +"Solution catalog, e.g. EMSC-RTS (real-time, subject to revision). Absent for USGS."

Previous value: -"Human-review state: \"automatic\" (posted by automatic processing, not yet verified by a person), \"reviewed\" (examined by an analyst), or \"deleted\". Null when the source publishes no review status — EMSC does not, so treat an EMSC solution as unverified and subject to revision rather than final."New value: +"Review state: automatic (unverified), reviewed (analyst checked), or deleted. Null if unpublished (EMSC); such solutions remain unverified and subject to revision."

Previous value: -"Human-readable event summary, e.g. \"M 6.0 - 13 km S of Honaunau-Napoopoo, Hawaii\"."New value: +"Event summary, e.g. \"M 6.0 - Hawaii\"."

Previous value: -"USGS tsunami flag: 1 for large events in oceanic regions, 0 otherwise. It is not a warning — USGS states the flag does not indicate whether a tsunami did or will exist; check NOAA (tsunami.gov) for actual alert status. Null when the source publishes no such flag, as EMSC does not."New value: +"USGS tsunami flag: 1 for large oceanic events, 0 otherwise; null if unpublished (EMSC). Not a warning or evidence of a tsunami; check NOAA tsunami.gov for alerts."

Previous value: -"USGS event ID, e.g. \"hv74966427\" or \"us6000sznj\". Found in the \"id\" field of earthquake_get_feed and earthquake_search results."New value: +"USGS event ID, e.g. \"hv74966427\" or \"us6000sznj\". Found in the \"id\" field of earthquake_get_feed and earthquake_search_events results."

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +false

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "event"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode. Declared by this tool: `not_found`: No event matches the provided event_id. `source_unavailable`: The USGS event API returns a 5xx, serves HTML, or is unreachable. `source_timeout`: The USGS event API did not answer before the request deadline. Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "not_found",
+            "source_unavailable",
+            "source_timeout"
+          ],
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

Removed value: -[
-  "event"
-]

Previous value: -"Maximum modeled peak ground acceleration, in percent of g."New value: +"Maximum modeled peak ground acceleration, in g — a fraction of standard gravity, as USGS ShakeMap publishes it (0.4 is four tenths of g)."

Added value: +{
+  "description": "How certain the source is of event_type: \"known\" (asserted), \"suspected\", \"unknown\", or \"unreported\". EMSC publishes this as the first character of its event-type code — a suspected explosion is not a confirmed one, and this is the only field that says so. Absent for USGS, which publishes no certainty axis, and absent for an EMSC code outside the published nomenclature.",
+  "enum": [
+    "known",
+    "suspected",
+    "unknown",
+    "unreported"
+  ],
+  "type": "string"
+}

Previous value: -"Upstream event classification. USGS spells it out — \"earthquake\", \"quarry blast\", \"explosion\", \"ice quake\" — while EMSC publishes a two-letter evtype code, \"ke\" for a known earthquake and \"ue\" for an unknown event. Not every record in either catalog is a tectonic earthquake. Absent when the source publishes no classification."New value: +"What kind of event this is, in one vocabulary whichever source served it — the QuakeML type names USGS publishes (\"earthquake\", \"quarry blast\", \"explosion\", \"ice quake\"). EMSC's two-character code is decoded to the same names, so the same event carries the same value from either source; how sure the source is rides on event_certainty instead. A code outside the published nomenclature is forwarded verbatim rather than guessed at. Not every record in either catalog is a tectonic earthquake. Absent when the source publishes no classification."

Added value: +{
+  "additionalProperties": false,
+  "description": "Analysis products USGS attached to this event. Absent when the event carries none — that means no product was produced, not that impact was zero.",
+  "properties": {
+    "dyfi": {
+      "additionalProperties": false,
+      "description": "Felt-report summary. Absent when no DYFI product exists for the event.",
+      "properties": {
+        "map_url": {
+          "description": "URL of the rendered DYFI intensity map image.",
+          "type": "string"
+        },
+        "max_cdi": {
+          "description": "Maximum Community Decimal Intensity derived from those reports (0–12 scale).",
+          "type": "number"
+        },
+        "responses": {
+          "description": "Number of \"Did You Feel It?\" reports the public submitted.",
+          "type": "number"
+        }
+      },
+      "type": "object"
+    },
+    "finite_fault": {
+      "additionalProperties": false,
+      "description": "Finite-fault rupture model. Produced only for large events.",
+      "properties": {
+        "model_url": {
+          "description": "URL of the finite-fault rupture model file.",
+          "type": "string"
+        },
+        "rupture_length_km": {
+          "description": "Modeled rupture length along strike, in kilometers.",
+          "type": "number"
+        },
+        "rupture_width_km": {
+          "description": "Modeled rupture width down dip, in kilometers.",
+          "type": "number"
+        }
+      },
+      "type": "object"
+    },
+    "ground_failure": {
+      "additionalProperties": false,
+      "description": "Secondary-hazard alert levels. Absent when no ground-failure model was run.",
+      "properties": {
+        "landslide_alert": {
+          "description": "Landslide hazard alert level — \"green\", \"yellow\", \"orange\", or \"red\".",
+          "type": "string"
+        },
+        "liquefaction_alert": {
+          "description": "Liquefaction hazard alert level — \"green\", \"yellow\", \"orange\", or \"red\".",
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "losspager": {
+      "additionalProperties": false,
+      "description": "PAGER impact assessment. Estimated fatality and economic-loss brackets live in a separate content file and are not part of this response — fetch report_url for them.",
+      "properties": {
+        "alert_level": {
+          "description": "PAGER impact alert level — \"green\", \"yellow\", \"orange\", or \"red\".",
+          "type": "string"
+        },
+        "report_url": {
+          "description": "URL of the PAGER one-page PDF summary of estimated impact.",
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "moment_tensor": {
+      "additionalProperties": false,
+      "description": "Focal-mechanism solution. Absent for events with no moment-tensor inversion.",
+      "properties": {
+        "derived_depth_km": {
+          "description": "Centroid depth in kilometers derived from the moment-tensor inversion.",
+          "type": "number"
+        },
+        "nodal_plane_1": {
+          "additionalProperties": false,
+          "description": "First nodal plane of the focal mechanism. Either plane can be the true fault.",
+          "properties": {
+            "dip": {
+              "description": "Fault plane dip in degrees from horizontal (0–90).",
+              "type": "number"
+            },
+            "rake": {
+              "description": "Slip direction in degrees (-180 to 180). Near 90 is reverse faulting, near -90 normal, near 0 or 180 strike-slip.",
+              "type": "number"
+            },
+            "strike": {
+              "description": "Fault plane strike in degrees clockwise from north (0–360).",
+              "type": "number"
+            }
+          },
+          "required": [
+            "strike",
+            "dip",
+            "rake"
+          ],
+          "type": "object"
+        },
+        "nodal_plane_2": {
+          "additionalProperties": false,
+          "description": "Second nodal plane — the auxiliary solution, indistinguishable from the first on seismic data alone.",
+          "properties": {
+            "dip": {
+              "description": "Fault plane dip in degrees from horizontal (0–90).",
+              "type": "number"
+            },
+            "rake": {
+              "description": "Slip direction in degrees (-180 to 180). Near 90 is reverse faulting, near -90 normal, near 0 or 180 strike-slip.",
+              "type": "number"
+            },
+            "strike": {
+              "description": "Fault plane strike in degrees clockwise from north (0–360).",
+              "type": "number"
+            }
+          },
+          "required": [
+            "strike",
+            "dip",
+            "rake"
+          ],
+          "type": "object"
+        },
+        "scalar_moment_nm": {
+          "description": "Scalar seismic moment in newton-metres — the physical size of the rupture.",
+          "type": "number"
+        }
+      },
+      "type": "object"
+    },
+    "origin": {
+      "additionalProperties": false,
+      "description": "Location-quality metrics for the preferred origin.",
+      "properties": {
+        "azimuthal_gap_deg": {
+          "description": "Largest azimuthal gap between stations, in degrees. Gaps above ~180 make the location poorly constrained.",
+          "type": "number"
+        },
+        "depth_error_km": {
+          "description": "Depth uncertainty in kilometers.",
+          "type": "number"
+        },
+        "horizontal_error_km": {
+          "description": "Horizontal location uncertainty in kilometers.",
+          "type": "number"
+        },
+        "num_stations_used": {
+          "description": "Number of seismic stations used in the location solution.",
+          "type": "number"
+        },
+        "review_status": {
+          "description": "Review state of the origin solution as the contributing network published it.",
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "shakemap": {
+      "additionalProperties": false,
+      "description": "ShakeMap modeled ground-motion summary. Absent when no ShakeMap was produced.",
+      "properties": {
+        "intensity_map_url": {
+          "description": "URL of the rendered ShakeMap intensity map image.",
+          "type": "string"
+        },
+        "max_mmi": {
+          "description": "Maximum modeled shaking intensity across the ShakeMap grid (Modified Mercalli).",
+          "type": "number"
+        },
+        "max_pga": {
+          "description": "Maximum modeled peak ground acceleration, in percent of g.",
+          "type": "number"
+        },
+        "max_pgv": {
+          "description": "Maximum modeled peak ground velocity, in cm/s.",
+          "type": "number"
+        }
+      },
+      "type": "object"
+    }
+  },
+  "type": "object"
+}

Added value: +{
+  "description": "Upstream event classification. USGS spells it out — \"earthquake\", \"quarry blast\", \"explosion\", \"ice quake\" — while EMSC publishes a two-letter evtype code, \"ke\" for a known earthquake and \"ue\" for an unknown event. Not every record in either catalog is a tectonic earthquake. Absent when the source publishes no classification.",
+  "type": "string"
+}

Previous value: -"PAGER estimated impact alert level. Null if not computed. USGS only."New value: +"PAGER estimated impact alert level. Null when USGS ran no PAGER assessment, and always null for EMSC, which publishes no such field."

Added value: +{
+  "description": "Code of the agency or network the source names as authoritative for this solution, e.g. \"NEIC\", \"BMKG\", \"NDI\" from EMSC or \"us\", \"ci\", \"ak\" from USGS. Absent when the source reports none.",
+  "type": "string"
+}

Previous value: -"Maximum reported intensity (Community Decimal Intensity, 0–12 scale). USGS only."New value: +"Maximum reported intensity (Community Decimal Intensity, 0–12 scale), derived from DYFI responses. Null when USGS computed no DYFI intensity, and always null for EMSC, which publishes no such field."

Previous value: -"Number of DYFI (Did You Feel It?) responses. Null if no reports. USGS only."New value: +"Number of DYFI (Did You Feel It?) responses. Null when USGS has received no reports for the event, and always null for EMSC, which publishes no DYFI field — a null is not evidence the event went unfelt."

Previous value: -"Maximum ShakeMap instrumental intensity (Modified Mercalli, 0–12 scale). USGS only."New value: +"Maximum ShakeMap instrumental intensity (Modified Mercalli, 0–12 scale). Null when USGS produced no ShakeMap for the event, and always null for EMSC, which publishes no such field."

Previous value: -"USGS significance score (0–2000+). Combines magnitude, felt reports, PAGER. USGS only."New value: +"USGS significance score (0–2000+). Combines magnitude, felt reports, PAGER. Null when USGS computed no score, and always null for EMSC, which publishes no such field."

Added value: +{
+  "description": "Upstream catalog this solution came from, e.g. \"EMSC-RTS\" (EMSC real-time seismicity, revised as analysis continues). Absent for USGS, which publishes no catalog identifier on event records.",
+  "type": "string"
+}

Added value: +[
+  {
+    "enum": [
+      "automatic",
+      "reviewed",
+      "deleted"
+    ],
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

Previous value: -"Review status. Automatic detections may be revised."New value: +"Human-review state: \"automatic\" (posted by automatic processing, not yet verified by a person), \"reviewed\" (examined by an analyst), or \"deleted\". Null when the source publishes no review status — EMSC does not, so treat an EMSC solution as unverified and subject to revision rather than final."

Removed value: -[
-  "automatic",
-  "reviewed",
-  "deleted"
-]

Removed value: -"string"

Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]

Previous value: -"1 if a tsunami warning was issued; 0 otherwise. USGS only; 0 for EMSC events."New value: +"USGS tsunami flag: 1 for large events in oceanic regions, 0 otherwise. It is not a warning — USGS states the flag does not indicate whether a tsunami did or will exist; check NOAA (tsunami.gov) for actual alert status. Null when the source publishes no such flag, as EMSC does not."

Removed value: -"number"

Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]

Previous value: -"Preferred magnitude value."New value: +"Preferred magnitude value. Null when no magnitude was computed for the event (the title renders it as \"M ?\")."

Removed value: -"number"

Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]

Previous value: -"Hypocenter depth in kilometers. Shallow (<70 km), intermediate (70–300 km), or deep (>300 km)."New value: +"Hypocenter depth in kilometers. Shallow (<70 km), intermediate (70–300 km), or deep (>300 km). Null for historical events where depth was not measured."

Removed value: -"number"