Back in January, SFGATE was on the ground in the national park during a previous eruption episode that also rained tephra ...

Fallout of the particles, as big as footballs, were reported at overlooks in the Hawai'i Volcanoes National park.

Park rangers are evacuating visitors from the Kīlauea Summit in Hawaiʻi Volcanoes National Park as it is temporarily closed due to hazardous amounts of volcanic rock, ash and glass particles falling ...

Indonesia’s Mount Semeru volcano erupted Wednesday afternoon around 4:00 p.m. local time, sending ash more than 6,500 feet into the air, according to data from the country’s Center for Volcanology.

Streams of molten lava flowed from Hawaii's Kilauea volcano overnight Saturday into Sunday, ahead of another eruption expected to take shape in the coming days, the U.S. Geological Survey said.

Ever wonder what it would look like to be engulfed in a lava fountain as you choke on volcanic ash and burn to death? No? Well, you’re wondering now, aren’t you? Don’t worry, what you’re about to see ...

The ash arrived from an active volcanic eruption in eastern Russia ...

An underwater volcano off the Oregon coast could erupt late this year, scientists say. The volcano, known as Axial Seamount, is more than 4,900 feet beneath the Pacific Ocean and 300 miles off the ...

POPOCATÉPETL VOLCANO, Mexico -- In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatépetl volcano, one of the world's most active and whose eruption could affect millions ...