A new study warns that a megathrust earthquake along the Cascadia Subduction Zone could cause coastal land to sink permanently.

A 2.7-magnitude earthquake felt by scores of people shook the northern San Francisco Bay Area in California early Tuesday, April 29, the U.S. Geological Survey reported. The nearly 6-mile deep quake ...

America faces greater earthquake risks as certain fault zones expand. Learn the new hotspots, expert warnings, and how ...

A preliminary 2.7 magnitude earthquake struck Tuesday morning near Sonoma, according to the United States Geological Survey.