USGS Earthquake Catalog

The USGS Earthquake Hazards Program API provides real-time and historical earthquake data worldwide via the FDSN Event Web Service. Returns detailed event data including magnitude, location, depth, significance, tsunami alerts, felt reports, and alert levels. Supports GeoJSON, CSV, KML, QuakeML, and XML output formats. No API key required and no rate limits.

Try a real question

Your question carries into your free workspace

USGS Earthquake Catalog

Try asking

What you can query

You can search earthquakes by date range, magnitude range, geographic bounding box, or radius from a point (query endpoint), and get counts of matching events without downloading full records (count endpoint). Results include magnitude, precise coordinates and depth, felt reports, tsunami flags, and PAGER alert levels.

What you can do

  • Monitoring recent earthquake activity in a specific region
  • Analyzing historical seismic trends by magnitude and location
  • Assessing earthquake risk for real estate or insurance underwriting
  • Tracking tsunami-associated earthquake events in the Pacific
  • Studying earthquake frequency and depth patterns over time
  • Building real-time seismic activity dashboards and alerts

Explore more datasets

Discover other public datasets and live API connections you can chat with.