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

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 ...

The spectacular lava fountains that marked Kilauea’s 27th eruptive episode came to an abrupt stop at 7:54 p.m. Sunday, ...

Update at 10:09 p.m. Sunday, June 29, 2025: Episode 27 of the ongoing episodic summit eruption of Kīlauea volcano on the Big ...

Scientists worry that recent activity seen on a satellite at a volcano near a major U.S. city could spell disaster for ...