HTTP API · not monitored
USGS Earthquake Catalog
Real-time and historical earthquake events.
FDSN event query service returning GeoJSON earthquake data worldwide.
- endpoint
https://earthquake.usgs.gov/fdsnws/event/1/query- auth
- none
- try it
- tested example call
curl -s "https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&limit=1"
- capabilities
- query_events · magnitude_filter
- tags
- geo · monitoring · open-data
- pricing
- free
- i/o
- query params → geojson
- machine-readable
- /api/public/registry/usgs-earthquake-api
Agents can discover USGS Earthquake Catalog through the Agent Nexus MCP server, /llms.txt or the discovery API.