A USGS map shows where in California 2.5 magnitude (or greater) earthquakes were recorded in the last seven days—the San Andreas Fault is represented as a thick red line. A USGS map shows where ...

Interactive map from the California Geological Survey shows the destruction potential of a tsunami wave in the Golden State.

N early 75% of the country is at risk for a potentially damaging earthquake in the next 100 years, according to a recently updated map from the U.S. Geological ... on how faults rupture and ...

A light, 4.1-magnitude earthquake struck in Southern California on Sunday, according to the United States Geological Survey ... to update the shake-severity map. An aftershock is usually a ...

Other wells were drilled just yards from faults. A recent U.S. Geological Survey analysis found that 7 million people in other parts of the country live in areas vulnerable to oil industry–induced ...

An 3.7 magnitude earthquake was recorded near Borrego Springs Thursday morning, according to the U.S. Geological Survey ...