A new study warns that a megathrust earthquake along the Cascadia Subduction Zone could cause coastal land to sink permanently.

Scientists learn to better understand the movement of Greenland, as it was slowly pushed over the hotspot that is now located under neighboring Iceland. Nothing stands still over geologic time, and ...

In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries ...

Smithsonian American Art Museum, Gift of George D. Pratt. The Smithsonian Institution came of age in the era of Manif ...

SAN JOSE — Well over 400 affordable homes could replace small retail buildings as part of a six-story development that would ...

Seismologist Deborah Kilb was wading through California earthquake records from the past four decades when she noticed ...

Federal cuts to the U.S. Geological Survey have prompted fears of losing vital ... The Surprising History of Seismic Activity ...

Using data compiled from single earthquakes across the world, Christie Rowe of the Nevada Seismological Laboratory at the University of Nevada, Reno and Alex Hatem of the U.S. Geological Survey sought ...

The Plumas-Eureka Mine became one of the most productive in the northern Sierra, extracting millions in gold before ...

Plumas-Eureka State Park in Blairsden, California might be the 6,000-acre surprise she never knew she wanted – a Sierra Nevada paradise that somehow remains off the radar of most Californians.

A 5.2-magnitude earthquake struck near San Diego at 10:08 a.m. Monday, according to the U.S. Geological ... to the USGS map, the quake was felt widely across Southern California and into Mexico.

Weeks after deadly fires swept through Los Angeles County, the state regulator in charge of overseeing utility companies declined a request that would have required California’s largest utilities to ...