That tsunami happened in 2011 and according to the California Geological Survey, it was the costliest disaster in modern history. It damaged harbors in California including Morro Bay.

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

Maps of the geology below the surface down to 100 meters reveal a ... One place the data is already leading to new discoveries is near the Diablo Canyon nuclear power plant in central California.

Sierra Nevada Batholith Geologic Map Mosaic. USGS, n.d. Web. Hughes, Noah, and Garry Hayes. Geological Excursions in the Sonora Pass Region of the Sierra Nevada. First ed. San Diego: Sunbelt ...

The California Geological Survey released a new app that can show block by block if your home is at risk of liquefaction or landslides. It's called the California Earthquake Hazards Zone App or EQ ...

For Eldridge Moores at the University of California, Davis — who may well be the current dean of California geology — the area is his geological back yard. As part of the intensive, years-long ...

SACRAMENTO -- 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 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 ...