VENTURA COUNTY, CA - the U.S. Geological Survey reported that a 3.6 magnitude quake occurred close to Fillmore Saturday ...

GLENN COUNTY, CA - A preliminary 2.6 magnitude quake was registered close to Alder Springs Sunday morning, according to the U.S. Geological Survey. A tremor rattled the region at 6:45 a.m. The ...

A 3.6-magnitude earthquake struck in Ventura County Saturday, according to the U.S. Geological Survey. The quake struck ...

A preliminary 2.7 magnitude earthquake struck Saturday morning near Kenwood in Sonoma County, according to the United States Geological Survey.

After a magnitude 7 earthquake ripped under Hubbard Glacier earlier this month, scientists believe a “connector fault” may ...

An earthquake shook in Sonoma County Saturday afternoon, according to the United States Geological Survey (USGS). A preliminary 2.7-magnitude earthquake was reported near Kenwood at ...

Deep inside Earth, researchers see signs that the solid inner core may be arranged in multiple chemical layers far below.

A 6.9 magnitude earthquake shook northeastern Japan and caused small tsunami waves but no apparent damage Friday, days after ...

Japan is learning what life is life under a megaquake watch. NPR's Rob Schmitz talks to Richard Allen, director of the Berkeley Seismology Lab, about what it means.

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

Four years after the Central Library was closed after an assessment raised alarm at its unreinforced masonry, leaders held a ...