There are two big challenges when it comes to tsunamis: first making sure people in the tsunami zone are notified and know ...

A 2.4-magnitude earthquake briefly shook parts of the Richmond region Friday evening, with some residents feeling a sharp jolt while others noticed nothing.

Thousands of people on the Hawaiian island of Oahu have been evacuated as winter storms dump masses of water on its already ...

When a 150-year-old facility is forced to reduce its workforce because the cost of doing business in California has become unsustainable, it is more than a local setback. It is a reminder about the ...

A burst of unusual March heat is hitting the United States this week and into next, busting previous monthly heat records by wide margins. While heat is most acutely felt by people exposed to it, ...

Earthquakes hit Aromas and The Geysers on Thursday, followed by swarm activity, highlighting ongoing seismic activity in the region.

According to one researcher, the recent uptick in seismic activity is not something to be worried about and is largely linked ...

Northern California was rattled by a series of small earthquakes on Wednesday night, according to the U.S. Geological Survey ...

Southern California's heat wave tied or broke 30 daily heat records on Wednesday with the worst heat yet to come, according to the National Weather Service.

SONOMA COUNTY, CA - A preliminary 2.4 magnitude quake struck near The Geysers on Thursday around midday, according to the U.S ...