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

The volcano last erupted in 2015, producing 450-foot-thick lava flows, but because of its remote location, it is not a threat ...

Lava in Hawaii, seismic shaking in Alaska and underwater rumblings near Oregon. Scientists say it’s not the end of the world, ...

The United States Geological Survey (USGS) shows lava fountains shooting up high in the latest episode of an ongoing eruption ...

Yellowstone National Park, renowned for its geothermal features and volcanic history, is beginning to show signs of renewed ...

From Mount St Helens in Washington to the Mauna Loa in Hawaii, these structures have a complicated history of disaster and ...

Hawaiian Volcano Observatory field engineers on July 10, 2025, visited monitoring stations downwind of the Kīlauea summit ...

This photo was taken by a Hawaiian Volcano Observatory monitoring webcam just before 6 a.m. July 9, 2025, during Episode 28 ...

A volcanic eruption in southwest Iceland has prompted evacuations, including at nearby tourist sites like the Blue Lagoon.

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

If you’ve been following the ongoing episodic summit eruption of Kīlauea volcano on the Big Island, you might have seen the terms “gas piston” or “gas pistoning” show up in some of the Hawaiian ...