Did you feel it? A 3.0 magnitude earthquake struck Snohomish County Tuesday morning and was felt in King and Pierce counties.

Two earthquakes struck near The Geysers in California’s North Bay, rattling homes across the region and drawing fresh attention to one of the state’s most seismically active zones. The larger event ...

Several earthquakes shook parts of the state over the weekend. An expert explains how this is not a sign of a bigger event to ...

The Supreme Court has allowed California to use a new voter-approved congressional map that is favorable to Democrats in this ...

At least 19 earthquakes, including a 4.2 magnitude quake, struck California's Bay Area on Monday, according to the United States Geological Survey (USGS). The series of quakes, which struck within a ...

Maps showing the locations of (A) four continuous and one conventional assessment units (AUs) in the Woodford shale and (B) four continuous AUs in the Barnett shale of the Permian basin province. The ...

This article originally appeared on KCRA.com. SUSANVILLE, Calif. — A magnitude 4.9 earthquake was recorded near the town of Susanville in Lassen County on Tuesday, according to the U.S. Geological ...

CEDAR RAPIDS, Iowa (KCRG) - The U.S. Geological Survey plans to start low-level plane flights this month across eastern Iowa. The project is part of a national effort to find mineral resources and ...

USGS released its most detailed national geologic map, offering layered views of geology beneath the Earth’s surface across the lower 48 states. The Cooperative National Geologic Map integrates data ...