• Swarm of small earthquakes hits Salton Sea, California

    Between 11:03 UTC on September 26 and 06:03 UTC on September 27, 2016, USGS registered a total of 143 earthquakes in a remote desert area around the Salton Sea in California. Three of them had magnitudes above 4. The largest was a shallow M4.3 at 14:31 UTC on…

  • New long-term earthquake forecast for California

    A new California earthquake forecast by the USGS and partners revises scientific estimates for the chances of having large earthquakes over the next several decades. The Third Uniform California Earthquake Rupture Forecast, or UCERF3, improves upon previous models by in