California's earthquake early warning system seems to have worked as intended. California, United States has had: (M1.5 or greater) 22 earthquakes in the past 24 hours 185 earthquakes in the past 7 days; 1,043 earthquakes in the past 30 days; 22,058 earthquakes … About Latest Earthquakes Version Info Clicking the list icon in the top right corner will load the earthquake list. Clicking the options icon in the top right corner lets you change which earthquakes are displayed, and …

The U.S. Geological Survey (USGS) along with a coalition of State and university partners are now implementing Phase 3 of operations of the ShakeAlert Earthquake Early Warning System for the West Coast of the United States. ShakeAlert is not earthquake prediction, rather a ShakeAlert message indicates that an earthquake has begun and shaking is imminent. The California Earthquake Early Warning System marries a smartphone application with traditional alert and warning delivery methods such as Wireless Emergency Alerts (WEA). Earthquake Early Warning (EEW) systems use science, state-of-the-art ground … The system uses ground motion sensors from across the state to detect earthquakes before humans can feel them and notifies you in real time.
Clicking the map icon in the top right corner will load the map.