An increase in seismicity—marked by frequent tremors—was observed recently at Alaska's Iliamna Volcano, which last erupted in ...

A 3.3-magnitude earthquake shook the Arcata area in Northern California, the U.S. Geological Survey reported. The 14-mile deep quake hit 2 miles from Arcata at 9:50 p.m. Sunday, June 22, according to ...

These neighborhoods join several others in the Fresno-Clovis area already designated as “moderate” or “high” fire severity ...

Landslides, earthquakes, and subduction faults could generate 1,000-foot mega-tsunamis, wiping coastal communities off the ...

Near-shore tsunamis, those triggered by earthquakes just off the coast, could pose a particularly dire risk for California’s ...

Tsunamis pose a risk to the entirety of the California coast. But should a major one strike, how bad could it be?

A near-certain disaster looms for California, but there are real things people can do to prepare. Here's what to know about the risks.

John Halldorson knows the best way to keep people safe after an earthquake is to prepare communities beforehand.

Additional information collected about the earthquake may also prompt U.S.G.S. scientists to update the shake-severity map. Source: United States Geological Survey | Notes: Shaking categories are ...

An earthquake has struck California as experts warn that the long-feared “Big One” could be approaching. Ukrainian forces scored another big victory deep behind Russian lines No, This Isn’t ...

The California Department of Forestry and Fire Protection (CAL FIRE) has issued compulsory evacuation orders for an area around the blaze, with lower evacuation warnings in force for a wider region.