US Geological Survey

Magnitude 4.5 earthquake shakes the Imperial Valley

The location of a magnitude 4.5 earthquake Sunday afternoon near Brawley. (USGS)

Top US Geological Survey Headlines

Curiosity Rover Investigates Clay Minerals on Mars Ancient …

A panorama of Teal Ridge on Mount Sharp is seen in a photo released by NASA/JPL on Aug. 5, 2019.

Magnitude 3.2 Earthquake Strikes Near Big Bear: USGS

A USGS map shows the location of a magnitude 3.2 earthquake that struck near Big Bear City on Aug. 18, 2018.

Scientists Urge Californians to Protect Themselves Ahead …

A home in Fillmore, Calif. is shown nearly six months after the 1994 Northridge earthquake. (Credit: Joe Pugliese / Los Angeles Times)

Rome Metro Evacuated as Powerful Earthquakes Rock Italy

20 Billion Barrels of Oil Discovered in Mammoth Texas; …