Did you feel it? An earthquake with a preliminary magnitude of 3.4 struck near San Ramon on Friday morning, the U.S. Geological Survey said.

What appears to be such a pleasant meeting-place of the well-known rifts, in the Northern part of California, is proving to ...

The model also proved the theorized existence of the Pioneer fragment, a remnant of the ancient Farrallon plate that used to ...

A new report shows that there are even more fault lines through central Utah than previously thought, and the report's author ...

The Utah Geological Survey (UGS) has completed a project forming new high-resolution maps of active faults throughout central ...

By tracking swarms of very small earthquakes, seismologists are getting a new picture of the complex region where the San ...

Over the last few days, the Coachella Valley has experienced more than 20 earthquakes, causing concern among some residents.

Along the remote coast where the San Andreas Fault meets the Cascadia subduction zone, earthquakes too small for humans to ...

The quake caused serious shaking in many parts of the Coachella Valley, located about 130 miles east of Los Angeles.

Northern California’s coast keeps you on alert, even on quiet days. Offshore, three tectonic plates meet near Humboldt County ...

Scientists are uncovering a hidden and surprisingly complex earthquake zone beneath Northern California by tracking swarms of ...

COLUMBUS – The number of earthquakes in Southeast Ohio have greatly shot upward in the past year, according to a database kept by the Ohio Department of Natural Resources. Since Jan.1, 2025, at least ...