San Andreas Fault stretches 1,200 km across California, housing quakes up to M 8.3. Experts warn of southern segment’s “Big ...

In California, where the next "Big One" is an always-looming threat, some lessons learned from the 1925 Santa Barbara quake resonate even 100 years later, experts say.

Bodega Head peninsula stands as the area’s geological masterpiece—a granite headland jutting dramatically into the Pacific, creating both the protected harbor and some of Northern California’s most ...

Subduction zones, where one tectonic plate dives underneath another, drive the world’s most devastating earthquakes and tsunamis. How do these danger zones come to be? A study in Geology presents ...

The San Andreas transform system is the plate boundary between the Pacific and North American plates, accomodating the horizontal movement between the two.

Crustal brines at an oceanic transform fault: New research explores geological processes along plate boundaries by Woods Hole Oceanographic Institution Editors' notes ...

Nearby San Andreas Fault connects active earthquake zones. One may be linked to Ridgecrest rattlers last week.

The San Andreas Fault The San Andreas fault zone is a continental transform fault or boundary between the Pacific tectonic plate to the west and the North American plate to the east.

Some background — The San Andreas Fault is the boundary between the Pacific plate to the west and the North American plate to the east.

The San Andreas and San Jacinto faults have ruptured simultaneously at least three times in the past 2,000 years, most recently in 1812, according to a new study by geologists.