A megathrust earthquake is coming for the Pacific Northwest. But new imaging of undersea faults and fractures has given ...

Structural engineers at UC San Diego were waiting to see how a tall building, made from recycled steel, would react in a 6.9 magnitude earthquake. The earthquake shake table was ready to go as the ...

Last week, about 60 miles off the coast near Ferndale, California, the tectonic plates shifted under the Pacific Ocean, sending seismic waves through the ocean floor that radiated onto land and were ...

Less than an hour before the annual Great California ShakeOut drill was scheduled to begin, an actual earthquake shook the San Francisco Bay Area, with an epicenter just over a mile east of Berkeley.