The relationship between the sites means an earthquake in one zone can trigger an earthquake in the other in a phenomenon ...

These are two very different fault systems, but the sediment record suggests that in the past, at least three San Andreas ...

OSU researchers find Cascadia Subduction Zone and San Andreas Fault may be synchronized — with the potential for quakes on ...

The epicenter of the earthquake was along the San Andreas Fault, about 56 miles south of San Francisco and 10 miles north of ...

The West Coast of North America is a geologically tumultuous zone where tectonic plates collide, subducting under and ...

Missouri DCI reports only 10.4% of homes in high-risk earthquake areas have insurance, urging residents to get coverage.

A mega-earthquake might be triggered by two volatile faults, striking in unison, with one quake nudging the other into ...

The Helena Valley sits atop a variety of different sediments and rocks, making it particularly susceptible to earthquake ...

Supershear earthquakes are more common than previously believed, some scientists say — carrying potentially profound risk for ...

In the Bay Area, BART plans to automatically slow down its trains and have them come to a brief stop, as the system is ...