One of the most explosive volcanoes in U.S. history began its eruption with a trickle, not a blast. Mount St. Helens' gas-laden magma oozed into the cone before the mountain finally erupted in 1980.

The last eruption of Greece’s Methana volcano was around 250 B.C.E. Ever since that event, which was recorded by the Greek ...

The 44th episode of lava fountaining on Thursday saw streams ascending over 500 feet above the vent in spectacular color.

Scientists in the Philippines warned Saturday that a volcano in the middle of a lake could erupt and release toxic gas. Within a 24-hour period ending Saturday morning, 21 earthquakes shook the area ...

Add Yahoo as a preferred source to see more of our stories on Google. People watch the surf on the coast of Central Oregon. The Axial Seamount, an underwater volcano 300 miles off the coast of Oregon, ...

HONOLULU (AP) — Hawaii’s Mauna Loa, the world’s largest active volcano, has started to erupt, prompting volcanic ash and debris to fall nearby, authorities said Monday. The eruption began late Sunday ...

Four decades on, the gap between well-monitored volcanoes and unmonitored ones still shapes who lives and dies. The new ...

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 ...

HONOLULU (AP) — The ground at the summit of Kilauea volcano in Hawaii has been rumbling and swelling in recent days, prompting scientists to warn that the mountain could once again disgorge lava. But ...

An active underwater volcano off the Oregon Coast that was predicted to erupt in 2025 is now expected to erupt mid-to-late 2026. The Axial Seamount volcano is located nearly a mile beneath the sea, ...

Volcanoes are Earth’s geologic architects. They’ve created more than 80 percent of our planet’s surface, laying the foundation that has allowed life to thrive. Their explosive force crafts mountains ...