The strongest was a 3.4 magnitude quake that struck near San Bernardino, with more than 500 people feeling the quake.

The map is the first to include all 50 states in a single USGS assessment ... shows a range of earthquake probability across the U.S. Well known high-risk areas, such as California and Alaska ...

A 4.5 magnitude earthquake and other smaller quakes rocked the Humboldt County coastline in Northern California on Feb. 11 ...

The U.S. Geological Survey reported two earthquakes with preliminary magnitudes of 3.5 and 3.0 ​hit near the San Bernardino ...

A magnitude 4.1 earthquake struck off the Northern California coast after midnight on Tuesday, the U.S. Geological Survey ...

A moderate earthquake, followed by three smaller quakes, shook California’s Northern Coast ... according to USGS maps. Three smaller quakes followed throughout the night, the last (3.0 or ...

An earthquake with a preliminary magnitude of 3.5, the third above 3.0 in Southern California in the last several hours, struck the Inland Empire on Saturday afternoon. According to the U.S.

California is riddled with a number of fault lines that frequently cause earthquakes, including Arrowhead, Waterman Canyon, ...