A swarm of at least six earthquakes reaching up to magnitude 2.9 rattled San Ramon near San Francisco, the U.S. Geological ...

HUMBOLDT COUNTY, CA - A 2.6 magnitude quake was detected close to Petrolia Sunday night, the U.S. Geological Survey reported.

The quake came only eight days after three earthquakes shook the area in the course of about 100 minutes. More than 30 quakes ...

California's seismic risk is increasing with supershear earthquakes, which are faster and more destructive than typical ...

A rare earthquake in Myanmar revealed how a long, mature fault can transmit energy directly to the surface. The discovery may change how scientists evaluate the danger posed by major faults around the ...

On Monday morning, around 30 minor earthquakes erupted in a swarm near the Geysers geothermal field south of Clear Lake. The day before, seven quakes rattled Sonoma County, including a 4.0 quake. The ...

The federal government and earthquake experts blamed a technical glitch for the alert that sent warnings hundreds of miles ...

A rare, ultra-long earthquake in Myanmar revealed that mature faults can deliver their full force directly to the surface.

A swarm of 20 earthquakes has jolted Southern California, shaking communities just miles from Los Angeles. The largest quake ...

California has been hit by an earthquake swarm for the fourth day in a row. Residents have been experiencing earthquake swarms for nearly a week, with the latest hitting on Tuesday, December 16. The ...

A 3.1-magnitude earthquake struck near Devore in San Bernardino County on Tuesday night, according to the United States ...