Geologic maps don’t make headlines. You probably haven’t seen one unless you work in energy, construction, or science. Yet, ...

Alameda County, Mendocino County, San Bernadino County, and San Mateo County are all featured in the top 10, at fifth, ...

A strong, 6.3-magnitude earthquake struck in the North Pacific Ocean near Ecuador on Friday, according to the United States ...

A strong, 6.2-magnitude earthquake struck in the Sea of Marmara on Wednesday, according to the United States Geological ...

A 5.2 magnitude earthquake shook Southern California on Monday, according to the U.S. Geological Survey. The quake was ...

SAN DIEGO (AP) — Southern California was jolted Monday morning by a strong earthquake near San Diego. The earthquake, at ...

Representative Kathy Castor (D-FL) has introduced bipartisan, bicameral legislation to improve the U.S. Geological Survey's ...