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

As Donald Trump returns to the White House, he has built the most formidable foundation of Republican electoral strength since the Ronald Reagan era in the 1980s.

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

New research uncovers a surprising clue in earthquake forecasting: tiny curved scratches on fault planes. These marks reveal ...