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

The earthquake was centered near Petrolia at a depth of 16.8 kilometers (about 10.4 miles). The USGS said it received five ...

ALSWORTH, Alaska – A magnitude 4.2 earthquake shook southern Alaska on Friday, according to the U.S. Geological Survey. The ...

Welcome to your weekly seismic update from across the state, brought to you by the Alaska Earthquake Center, where we monitor ...

The 2002 Denali Fault Earthquake would have a profound effect on the career of the Russia-born Ruppert, who after 30 years at the Alaska Earthquake Center in Fairbanks is now moving on to a new ...

A 3.3-magnitude earthquake shook the Arcata area in Northern California, the U.S. Geological Survey reported. The 14-mile ...

When volcanoes are preparing to erupt, scientists rely on typical signs to warn people living nearby: deformation of the ...

Alaska, one of the world’s most seismically active locations, just completed a relatively quiet year for earthquakes but a busy year for landslides in the Southcentral region, according to an ...

Two days after a magnitude 7.0 earthquake struck near Anchorage, Alaska is still shaking. Since Friday's tremor, the strongest to strike The Last Frontier since a 7.9 in the remote Rat Islands in ...

Justin Smith of Gustavus writes in a commentary that in an emergency, he turns to KTOO, his local public media station.

Measuring 9.2 on the moment magnitude scale, the Great Alaska Earthquake was the most powerful earthquake ever recorded in the United States, and the second strongest globally. Its violent tremors ...