California Earthquake Swarm: 555 Quakes in Past Week, 1007 in Past Month

Recent Seismic Activity Raises Concerns

WEB California United States has had M15 or greater 48 earthquakes in the past 24 hours 555 earthquakes in the past 7 days 1007 earthquakes in the past 30. WEB Recent Earthquakes in California and Nevada Click on an earthquake on the above map for a zoomed-in view. WEB Explore our real-time map showing quakes detected within the past week Legend Earthquakes are shown as circles sized by magnitude red 1 hour. WEB A moderately strong 52-magnitude earthquake struck in Southern California on Tuesday according to the United States Geological Survey. WEB Load M25 past week Load all past day Load all past week warning slow..