Officials at the USGS estimate that several million earthquakes occur in the world each year. But many go undetected because they occur in remote areas or have very small magnitudes. The USGS National Earthquake Information Center locates about 50 earthquakes each day, or about 20,000 a year. Up-to-date statistics on the number of earthquakes worldwide and in the United States can be found in the Earthquake Hazards Program (USGS) website.

Earthquake