A minor, 3.3-magnitude earthquake struck in Northern California on Monday, according to the United States Geological Survey.

California geology officials have released an updated state seismic activity map that they hope will improve earthquake preparedness and construction decisions. The map, which had not been updated ...

The California Geological Survey announced Thursday a new, interactive tsunami hazard map is online for Orange County that officials say can be helpful in planning evacuations should one of the ...

SAN JOSE, Calif. (AP) — California geology officials have released an updated state seismic activity map that they hope will improve earthquake preparedness and construction decisions. ...

Developed by the California Geological Survey, these regulatory Alquist-Priolo Earthquake Fault Zone maps detail where local governments must require site-specific geologic and engineering studies ...

An unprecedented effort to map the seafloor bordering California's coastline has produced ... Maps of the geology below the surface down to 100 meters reveal a big paleochannel through ...

The California Geological Survey has released updated tsunami hazard maps for seven counties to help users determine whether they are in areas at risk for inundation and for planning.

The California Geological Survey and the Governor’s Office of Emergency Services released an update to the state’s tsunami hazard area map, with the latest changes concentrated on seven ...

The Geology Fire, California’s first 1,000-acre wildfire of the year, has closed hiking and camping areas in Joshua Tree National Park. The fire started around 4 p.m. Saturday, June 10, along ...

The California Geological Survey (CGS) updated its seismic hazard zone map in April, revealing the most dangerous places in the Bay Area during phenomena like liquefaction and landslides following ...

[[476996153, ]] Southern California's dramatic and varied landscape can be breath-taking, but at the same time vulnerable to dangerous landslides.. The map above shows areas susceptible to deep ...

The new maps were finalized after review by local government entities, the public and the state mining and geology board. California Geological Survey Location map and geologic profile at Locality 1b.