Mapping out geology across the U.S. is surprisingly difficult, but the USGS has managed just that, and its map is more ...

LAKE COUNTY, CA - Friday morning, a preliminary 2.1 magnitude quake was reported near Cobb, according to the U.S. Geological ...

Two earthquakes were recorded within hours of each other near Marion, North Carolina, and witnesses report they felt shaking ...

Local emergency agencies say they are monitoring the seismic activity but have not issued any tsunami warnings.

A 3.2-magnitude earthquake struck Northern California, just near Sonoma County, early Friday morning, according to the U.S.

A 3.0 magnitude earthquake shook parts of northeast San Diego County shortly after 8 p.m. on Wednesday, according to the U.S.

A U.S. Geological Survey representative told the Little Calumet River Basin Development Commission in August that arsenic ...

A small earthquake was reported in Talladega County on Friday morning. The U.S. Geological Survey has released details on the tremor's magnitude and location.

A new geological study is reshaping what scientists know about Maine's bedrock, and could play a key role in the state's ...

Suffolk County is doubling down on protecting its most vital resource, clean water. The U.S. Geological Survey will monitor ...