NAPA COUNTY, CA - A 2.3 magnitude quake shook near Green Valley on Tuesday morning, according to the U.S. Geological Survey.

MENDOCINO COUNTY, CA - A preliminary 2.1 magnitude quake occurred near Redway on Wednesday around midday, the U.S. Geological ...

San Diego County is located in a high-risk seismic area, and is prone to ground shaking due to its proximity to the Rose ...

IMPERIAL COUNTY, CA - A preliminary 2.1 magnitude quake occurred close to Brawley on Wednesday morning, according to the U.S.

LYON COUNTY, NV - A 3.5 magnitude quake occurred close to Silver Springs around midday Wednesday, according to the U.S.

There have been more than 400 tremors recorded in this swarm as of May 11. How unusual is this?

LYON COUNTY, NV - A preliminary 2.2 magnitude quake occurred close to Silver Springs at midday on Sunday, according to the ...

IMPERIAL COUNTY, CA - A preliminary 2.0 magnitude quake shook near Holtville on Sunday morning, according to the U.S.

MENDOCINO COUNTY, CA - A preliminary 2.4 magnitude quake occurred close to Redway on Monday afternoon, according to the U.S.

IMPERIAL COUNTY, CA - A 2.5 magnitude quake rattled close to Brawley on Saturday night, the U.S. Geological Survey reported.

SAN BERNARDINO COUNTY, CA - A preliminary 3.4 magnitude quake shook near Muscoy on Friday night, the U.S. Geological Survey ...

IMPERIAL COUNTY, CA - A preliminary 2.2 magnitude quake struck close to Holtville on Sunday evening, the U.S. Geological ...