At the Seismological Society of America's Annual Meeting, researchers posed a seemingly simple question: how wide are faults?

San Francisco firefighters, community leaders and city officials gathered Friday morning to mark the anniversary of the 1906 ...

A preliminary 6.0-magnitude earthquake struck near San Diego, according to the U.S. Geological Survey. The quake's epicenter ...

Earthquakes rank among the deadliest natural disasters in the world, with many of them killing thousands. Experts warn the ...

An earthquake with a preliminary magnitude of 5.2 rattled the San Diego County area Monday. According to the U.S. Geological ...

A magnitude 5.2 earthquake occurred in northeastern San Diego County near Julian at 10:08 a.m. Monday, causing shaking that ...

Shaking was reported in parts of Los Angeles Monday morning from a magnitude-5.2 earthquake more than 100 miles away in San ...

The 5.2 quake was centered near Julian. There were no immediate reports of major damage or injuries but some residents ...

The earthquake risk at Scott Dam may be a key factor in PG&E’s decision to abandon the Potter Valley Project.

These maps, based on research into earthquake sources such as faults and how seismic waves move through the earth’s crust, are used to determine the forces that structures in each community should be ...

The earthquakes near the Bay Area in California follow a deadly earthquake that struck Myanmar and Thailand in Southeast Asia last week. Gabe Hauari is a national trending news reporter at USA TODAY.

The earthquakes near the Bay Area in California follow a deadly earthquake that struck Myanmar and Thailand in Southeast Asia last week. 'Proud Stocktonians' pack downtown arena as Stockton Kings ...