Two Faults 'Holding Hands' Could Trigger Big Earthquakes in California

Two faults in the San Francisco Bay Area are "holding hands" and could trigger a devastating earthquake, a new study finds. In a new study, researchers have determined that the Hayward Fault and Rogers Creek Fault connect beneath San Pablo Bay, the estuary that forms the northern part of San Francisco Bay. Using a specially designed seismic profiler for shallow waters, the scientists were able to gather sufficient data to build a new map showing where the Hayward and Rogers Creek faults link.