01 / ALL EVENTS
events in one week
The weekly feed records hundreds of earthquakes across every major seismic region. Larger circles mark higher magnitudes.
USGS · Magnitude + · days
One week of earthquakes
The weekly record covers global activity, high-magnitude events, felt reports, and tsunami flags.
02 / MAGNITUDE
Large events are sparse
Only a small fraction of the weekly record reached magnitude 5 or greater.
03 / FELT REPORTS
Felt reports follow population
Reports concentrate near populated places. Magnitude and felt reports point to different response priorities.
04 / TSUNAMI FLAGS
tsunami flags
USGS flags large oceanic events for tsunami assessment. A flag does not mean that a tsunami occurred.