Discover interesting facts about volcanoes, including why and where they form and history's deadliest eruption.

Oct 4, 2024 · Six earthquakes were recorded at the Mount Adams volcano in September — a significant increase on the normal rate of one every two to three years.

Nov 1, 2004 · Basic volcano science and a history of volcanic eruptions.

Dec 30, 2024 · To be considered active, a volcano must have erupted at some point during the Holocene, but dormant and extinct are a little harder to define.

Nov 11, 2025 · A 2025 satellite photo captures the stark contrast between the barren Poás volcano and the surrounding Costa Rican jungle. The volcano's super-acidic lake provides the perfect analog for …

May 28, 2025 · The USGS has announced that Kilauea volcano is ejecting fountains of lava in a manner not seen since the Pu'u'ō'ō eruption in the 1980s. But while the lava is mesmerizing, officials warn …

Feb 29, 2024 · The Popocatépetl volcano, just outside Mexico City, has been spewing thick plumes of volcanic ash into the sky, causing flights to be grounded.

Oct 16, 2025 · Today, the volcano hosts an active hydrothermal system and smelly, sulfur-emitting vents called fumaroles, but it isn't known to have erupted in human history.

Nov 12, 2025 · Researchers thought that Axial Seamount might erupt in 2025, but recent data suggest the underwater volcano could take a bit longer to blow its top.

Jul 30, 2025 · Klyuchevskoy volcano in Russia erupted shortly after a powerful 8.8 magnitude earthquake in the same region.