Countless seismic faults just as dangerous as the one that triggered Monday's San Simeon earthquake are suspected to be lurking throughout the Bay Area. Scientists have known about some of these ...

The ports of Los Angeles and Long Beach bustle with activity—their colorful array of shipping containers are stacked and unstacked in a never-ending, multibillion-dollar game of Tetris. But a ...

The orange line is the current interpretation of the Keweenaw Fault location. Based on Graff and Tyrrell’s observations and analysis, the fault appears to be a system of splay faults (shown here by ...

Three hundred seventeen years ago, the last really Big One let loose in our area. A great earthquake on the Cascadia subduction zone ruptured a 600 to 700 mile-long fault from Humboldt County to ...