A Yellowstone supereruption would be devastating, but scientists say it is not the volcano’s most likely threat. Here is what ...

HONOLULU (AP) — Lava is shooting 100 feet to 200 feet (30 to 60 meters) into the air as Hawaii’s Mauna Loa, the world’s largest active volcano, erupts for the first time in nearly 40 years. For now, ...

Anak Krakatau erupted seven times on Wednesday, but authorities said the activity remains minor with no threat to nearby ...

A camera captured a brief phreatomagmatic eruption that occurred in the Taal Volcano's main crater in Batangas, Philippines ...

It's a truism among oceanographers that there is more accurate mapping of the surface of the moon and Mars than of the deep-ocean floor. That's especially true for the Bismarck Sea, a relatively deep ...

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma—and when. Until now, it was thought that gas bubbles were formed primarily when the ambient pressure dropped ...