A series of small earthquakes shook the San Francisco Bay Area on Thursday, according to the United States Geological Survey.

In some areas, hazards have surged. Buildings in the highest hazard zones will be subject to the strictest fire-resiliency rules.

Southern California is getting drenched with the strongest storm of the year to date. Rainfall totals through Friday are ...

NASA scientists used satellite measurements to map out local subsidence and uplift across the Golden State, which plays into ...

Cal Fire released updated fire hazard maps for dozens of cities and towns in inland Northern California. All but one saw an ...

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