Poás Volcano remains closed despite lower alert level, as Costa Rica officials prepare for a safe reopening with inspections ...

Essentially, gas pistoning is a shallow, degassing-driven rise and fall of a lava surface. Often these pistons occur in ...

Alaska's Iliamna Volcano last erupted in 1867 and was caught shaking from frequent small earthquakes, which were unlikely to ...

Scientists have uncovered evidence that precious metals like gold are leaking from Earth’s core into the mantle, ultimately ...

In a fascinating find beneath the waves of the Barents Sea, researchers have discovered anunderwater mud volcano dating back ...

The Kilauea Volcano in Hawaii, located on the state's Big Island, underwent two major eruptions in the last few weeks.

Hawaii's Kilauea volcano is erupting again in spectacular fashion, sending lava shooting 1,000 feet into the sky, according to the United States Geological Survey. On Friday morning, "Episode 26 ...

Are there volcanoes in the U.S.? According to the U.S. Geological Society, the U.S. ranks third in the number of historically active volcanoes, behind Indonesia and Japan.

According to the USGS, since the beginning of the 18th century, seven Cascade volcanoes have erupted. And over the last 4,000 years, eruptions have occurred at a rate of about two per century ...

Hawaii's Kīlauea Volcano shows intense activity with lava fountains up to 1,000 feet. The USGS notes "numerous episodes of dual lava fountains since the eruption began." ...

The Kilauea volcano in Hawaii has been erupting on and off since last year – spewing lava and ash. USGS, which monitors volcanoes in addition to earthquakes, predicts more eruptions to come ...