Earthquakes in California

California straddles the boundary of the Pacific and North American plates, threaded by the San Andreas and hundreds of other active faults. Most of the state's population lives near a fault capable of a major earthquake — it's a question of when, not if.

This page tracks live USGS seismic activity across California — 113 cities including Los Angeles, San Diego, San Jose. The map and list above update continuously; open any city for a closer view with its own recent-quake and felt-radius detail.