USGS Earthquakes
Earthquakes
Last verified: 1 October 2026
USGS earthquake catalog web service, implementing the FDSN Event specification. It searches earthquakes by time, area, magnitude and depth. Results come as QuakeML, CSV, GeoJSON, KML or plain text.
Services
- query method to search events
- count method to count results
- Rectangle or circle geographic filters
- GeoJSON, CSV, QuakeML, KML formats
Access requirements
Free, no API key; 20,000 results maximum per query.
Sandbox: Yes
Sources
- USGS Earthquakes (new tab), verified on 1 October 2026Official site consulted