Scientists have detected unusual activity along the San Andreas Fault, sparking concerns that a major earthquake could be ...

California has suffered some destructive ... Some researchers have offered dueling theories — some say earthquake activity goes up in a region before a large earthquake, others say it goes ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Monday’s 4.4 magnitude earthquake that ...

California officials are responding to earthquake activity in the northern part of the state on Thursday, Gov. Gavin Newson said in a post on X. The California Governor’s Office of Emergency ...

“You’re going to have some variability in these earthquakes.” While the recent heightened activity doesn’t increase the odds of Southern California getting hit with a large, damaging ...

About 5% to 10% of all California earthquakes are followed by a larger one within a week, and the probability of a larger quake depends on how much aftershock activity there is, according to the USGS.

California has experienced three earthquakes in the last 24 hours in an area being closely monitored for a major quake. The US Geological Survey (USGS) detected the seismic activity along the San ...

The seismic activity appears to be concentrated ... Warning Center would make the ultimate determination. An earthquake ruptured off California’s coast on Thursday morning, triggering a tsunami ...

This map from the U.S. Geological Survey shows the area of Southern California rattled ... about what leads up to a large earthquake. Some say there’s more activity before a major quake, others ...

SAN DIEGO (FOX 5/KUSI) — A powerful earthquake struck off the coast of Northern California on Thursday, prompting the National Weather Service to briefly issue a tsunami warning for communities ...