Two of the most dangerous fault systems on the U.S. West Coast may be more connected than scientists once thought. New ...

An aerial view of the La Cañada Flintridge foothills shows dust and dirt thrown into the air following a magnitude 5.9 earthquake from Oct. 1, 1987. (George Rose / Getty Images) Monday's magnitude 4.4 ...

One of the United States’ most active fault systems poses a significant earthquake hazard, and a major event could have serious consequences for densely populated parts of California. A new study ...

They are two of the West Coast’s most destructive generators of huge earthquakes: The San Andreas fault in California and the Cascadia subduction zone offshore of California’s North Coast, Oregon, ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Earthquakes triggered by the notorious San Andreas Fault in California may have been triggered by an ancient rising lake, ...

Enlarged microscope photo of sedimentary rock that was structurally altered during an earthquake. The slip layer (green portion) was heated during fault movement. The actual field of view is only ...

This is read by an automated voice. Please report any issues or inconsistencies here. New research suggests the San Andreas fault and the Cascadia subduction zone could produce devastating ...

Whether you’re looking to tour historic landmarks, learn some gardening skills or explore the local flora and fauna, you’ll find plenty of opportunities on the Peninsula. Check out our October home & ...

Monday’s magnitude 4.4 earthquake centered four miles northeast of downtown Los Angeles was modest but packed quite a jolt. Although no major damage was reported, experts say the temblor was in the ...