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

A team of geologists coming from New Zealand, New Caledonia, Australia, the U.S., Denmark and Tasmania compiled a new geological map using ... This fault is likely a "scar" in Earth's crust ...

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