A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

While rare, Redding does get earthquakes strong enough for us to feel. Here's why Shasta and Siskiyou counties and the north Sacramento Valley shakes.

Scientists have developed a new system that turns Android smartphones into real-time earthquake detectors, potentially creating a faster way to warn people before a major tremor hits. The system, ...

Volcanoes in the United States that have been active since spring woke up, brushed themselves off, and then went back to ...

Officials in the community of King Cove, which has about 870 residents and is on the south side of the Alaska Peninsula, sent ...

A lightly populated stretch of Alaska ’s southern coast was under a tsunami warning Wednesday after a strong earthquake was ...

Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake ...

Thanks to the Great Oregon ShakeOut drill, earthquakes are top of mind for Oregonians, but why should we prepare? Frequently asked questions about Oregon quakes.

New evidence suggests current estimates about tsunami size and how quickly waves make it to shore may be too high and too ...

The Great Oregon ShakeOut takes place every third Thursday in October. The event is part of a global earthquake drill involving individuals, families, schools and businesses.

In Oregon, areas impacted for the tsunami warning appeared to stretch from the southern Oregon Coast north toward Florence.

A tsunami warning has been issued for south Alaska and the Alaska Peninsula after a massive 7.3-magnitude earthquake, ...