usgs_earthquakes
Search USGS earthquake data by magnitude, location, date range, and alert level to monitor seismic activity and assess tsunami risks.
Instructions
Search for earthquakes by magnitude, location, date range, and more. Returns magnitude, location, depth, time, alert level, tsunami risk, and felt reports. Magnitude scale: 2.5+ felt by people, 4.0+ moderate, 5.0+ significant, 7.0+ major.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| starttime | No | Start date ISO format: '2024-01-01' | |
| endtime | No | End date ISO format: '2024-12-31' | |
| minmagnitude | No | Minimum magnitude (e.g. 4.0, 5.0, 6.0) | |
| maxmagnitude | No | Maximum magnitude | |
| latitude | No | Center latitude for radius search | |
| longitude | No | Center longitude for radius search | |
| maxradiuskm | No | Search radius in km (requires lat/lon) | |
| alertlevel | No | PAGER alert level: 'green' (Limited impact — no damage expected), 'yellow' (Regional impact — some damage possible), 'orange' (National/international impact — significant damage likely), 'red' (Massive impact — extensive damage and casualties expected) | |
| limit | No | Max results (default 20, max 200) | |
| orderby | No | Sort order (default: time) |