The SPP between California and Mexico becomes the 116th such partnership involving the U.S. dating back to 1993.

The ShakeAlert system that warns about imminent shaking arriving from earthquakes sent a false alarm across California on ...

Aftershocks have been recorded for both earthquakes. On Dec. 8, Japanese authorities warned an even more powerful earthquake ...

Thousands of people across the California Bay Area were rattled as a burst of minor earthquakes arrived in rapid succession, ...

With earthquakes bouncing around the Pacific "Ring of Fire" some tremors have been going on in recent days up and down ...

A shake alert went out over the U.S. Geological Survey's early warning system on Dec. 4, warning that a 5.9 earthquake near ...

People in the Bay Area continue to experience the “flare up” of earthquakes into Monday afternoon, Oakland being the latest ...

A 4.0 magnitude earthquake struck about five miles east of Gilroy, California, and a 4.6 magnitude earthquake struck the ...

Nov. 27, 8:10 a.m. An earthquake with a preliminary magnitude of 3.7 rattled roughly 37 miles north of Santa Rosa in Northern ...

Percolating downwards, the extra water eventually found its way into a major fault zone that slices through the 12km-long ...

At least three earthquakes, each stronger than the last, struck Central California on Thanksgiving afternoon with preliminary ...

A magnitude 3.8 earthquake struck Riverside County near Idyllwild on Thursday evening, followed by a 3.5 temblor. A pair of Thanksgiving Day earthquakes were reported Thursday just around dinnertime ...