New long-term earthquake forecast for California

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

Large earthquake swarm rattles Long Valley caldera, California U.S.

Large earthquake swarm rattles Long Valley caldera, California U.S.

A large earthquake swarm is currently underway in Long Valley caldera, Mammoth Lake region of California U.S., east of the Sierra Nevada mountains. The swarm started on Thursday, September 25, 2014, and it is one of the largest earthquake swarms in this region in the pa