Mantle minerals in faults above a subducting slab can become aligned. Laboratory analyses show that this mineral alignment can also generate direction-dependent friction that can cause faults to ...

Preliminary data suggest Friday night’s 5.1 magnitude earthquake near La Habra occurred on the Puente Hills thrust fault, which stretches from the San Gabriel Valley to downtown Los Angeles and ...

New research shows the earthquake that struck central Nepal in April this year was only a partial rupture of the fault line, meaning another strong quake could be due in future.

A 4.4 magnitude earthquake in Los Angeles in August was along the Puente Hills fault system, a thrust fault that runs beneath one of the city's oldest and most densely populated areas.