Earthquake swarms are clusters of small quakes caused by complex fault systems and underground stress, and scientists say ...

The quakes come as California sees the effects of an atmospheric river that has caused flash flooding, rescues, and ...

Three minor earthquakes struck near San Ramon, California, within minutes on Friday morning, with the strongest measuring ...

The quake occurred at 4:41 p.m. in Lassen County, about 9 miles outside of Susanville, and had a radius of 15 kilometers and ...

Findings based on mini “lab quakes” in a controlled setting could help researchers assess the likelihood of future quakes in ...

Three small earthquakes shook the Bay Area near Santa Rosa on Sunday afternoon, according to the U.S. Geological Survey. The largest was a magnitude 4.0 temblor at 3:30 p.m., which was followed eight ...

Far beneath the polar night, the front of Antarctica’s most feared ice stream is shuddering with a new kind of warning signal ...

Another minor earthquake struck San Ramon on Wednesday morning, the latest in a series of small quakes in the area, authorities said. The 3.1-magnitude earthquake struck at 11:36 a.m. in the area ...