The tornado never touched down in San Francisco. But the conditions in the atmosphere with wind speed and direction were ...

A tornado near a mall in central California swept up cars, uprooted trees and sent several people to the hospital. In San ...

Steel, granite, and four floors of white marble interiors make up San Francisco's symbol of resilience, built after the previous City Hall was destroyed in the Great Earthquake and Fire of April 18, ...

A late-night 5.2-magnitude earthquake shook the Pacific Ocean off the Northern California coastline, the U.S. Geological ...

Installing a new headworks at an existing wastewater treatment plant is much like trying to perform a head transplant while ...

Last week's earthquake off the coast of Humboldt County triggered a tsunami warning urging people across a huge swath of California and Oregon to evacuate. Why aren't tsunami warnings more precise?

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

With roughly 40,000 people in San Francisco — and nearly 220,000 Bay Area residents — living in tsunami hazard zones, ...

A 5.6 magnitude earthquake that struck Nevada on Monday afternoon was strong enough to rattle homes in California.

The quake struck 15 miles north-northeast of the town of Yerington, about 40 miles east of Carson City, at 3:08 p.m. local ...

The tremor struck about a 175-mile drive southeast from Ferndale, which was hit by a 7.0-magnitude earthquake on Dec. 5.

YERINGTON, Nev. — At least 12 aftershocks greater than M2.5 have occurred after a M5.7 rocked parts of Nevada and California, ...