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Plot recent seismic events on a map with magnitude and observation time.
Know before you build
Use the real-time feeds for regularly refreshed displays when possible. This directory is not an emergency alerting service.
Check current provider documentation ↗Your first request
Start with this documented example. Replace credential placeholders with your own test credentials. Browser execution depends on the provider’s CORS policy.
curl --request GET 'https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&minmagnitude=5&limit=5'Practical questions
What can I build with USGS Earthquakes?+
Plot recent seismic events on a map with magnitude and observation time.
Does USGS Earthquakes need authentication?+
The reviewed example is listed as “No key”. Use the real-time feeds for regularly refreshed displays when possible. This directory is not an emergency alerting service.
Can I call USGS Earthquakes from a browser?+
Browser access depends on the provider’s CORS policy for your origin, method, and headers. The playground makes a direct request and cannot bypass those restrictions.
Sources & confidence
Provider documentation was reviewed on 16 September 2026. This is not a live availability test or an endorsement.
Source catalogs can become outdated. Read our review and attribution policy. Plain-text guide ↗