A major U.S. city is under threat from a potential volcanic eruption after more than 20 earthquakes were recorded in Alaska.

If an eruption happens, it would likely occur at Crater Peak, shown in the background of this summit photograph. Photograph by Matt Loewen, Alaska Volcano Observatory, U.S. Geological Survey ...

That is the risk we face by reducing ... slowly spewing lava since it began erupting in 2021. Another volcano that’s actively being monitored right now is Alaska’s Mt. Spurr, where small ...

A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say.

Researchers found that a potential powerful earthquake combined with rising sea levels could lead to a mega tsunami.