Spectacular drone footage captured the Sundhnúkur volcanic fissure erupting in southwest Iceland on Wednesday. A river-like ...

A 7.3-magnitude earthquake struck off Alaska’s coast near Sand Point on Wednesday, triggering a tsunami warning for parts of ...

A view of the volcanic eruption by the Sundhnúkagigjarö íur volcano, in Grindavik, Iceland, Wednesday, 16 July.

A 7.3 quake off Alaska triggers tsunami warnings and evacuations. Experts warn the region remains at high risk for future seismic sea waves.

ANCHORAGE, Alaska (AP) — A lightly populated stretch of Alaska’s southern coast was under a tsunami warning Wednesday after a ...

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

The Alaska-Aleutian subduction zone ranks among the world's most seismically active regions, having generated more magnitude 8 and above earthquakes in the past century than any other area on the ...

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

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

Samples of extremely small crystal clots, each polished to the thickness of a human hair or thinner, have revealed ...

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