We asked readers to answer a series of questions to create a new map of California regions. This was the result.

Berkeley officials also said they’d like to see improvements in how tsunami warnings are handled. The city’s aggressive ...

The quakes come a week after a magnitude 7.0 earthquake hit off the coast of California with shaking felt for miles.

The U.S. sent one of its 11 aircraft carriers to the Philippine Sea, while another was at Yokosuka naval base in Japan.

The 7.0 earthquake earlier this month led to a tsunami warning that was quickly canceled by forecasters but officials have ...

Advanced geophysics clearly outlines the phases of a layered mafic intrusion, creating drill-ready targets. The geophysics ...

Some sections of California's coast are considered vulnerable to tsunamis. Find out where those locations are and how to best ...

Of particular concern was a traffic snarl that wrapped around downtown Eureka, Calif., following the issuing of a statewide ...

According to Christie Rowe, director of the Nevada Seismological Laboratory, the epicenter is in a sparsely populated area, ...

This year’s rainy season is underway, which means atmospheric rivers are set to dump rain and snow across California and the Pacific Northwest.