Yellowstone Just EXPLODED Again — Rocks Thrown 100 FEET High

On September 27, 2026, at about 8:12 p.m., a pool at Biscuit Basin in Yellowstone National Park exploded and threw boiling water, steam, mud and rocks at least 100 feet into the air. The pool had formed only in June, after another explosion tore a 61-foot fissure through the ground nearby. It is the third hydrothermal explosion at the same basin since July 23, 2024, when a blast sent more than 1,400 rocks across a boardwalk with about two dozen visitors on it. The U.S. Geological Survey found no detectable warning before that one. Yellowstone's volcano alert level is NORMAL and has not changed. This video goes through each explosion, explains why hot water, not magma, is the hazard Yellowstone actually delivers, and lays out what is known about the magma system underneath, including the cap of molten rock found 2.4 miles down in 2025. IN THIS VIDEO • September 27, 2026: the pool that did not exist in May • July 23, 2024: "It just exploded and became like a black cloud that covered the sun" • No detectable precursors • April 2024 to September 2026, blast by blast • How big these explosions get: Mary Bay, a crater 1.5 miles wide • What "green" does and does not mean • The magma cap at 3.8 km and the four reservoirs • The Norris uplift • The odds of a supereruption, in USGS's own numbers • Geysers changing, staff cuts, and the 1959 earthquake SOURCES USGS Yellowstone Volcano Observatory monthly updates (July to October 2026) · USGS Caldera Chronicles (June 22, Aug 3 and Sept 28, 2026; Aug 5, 2024; Jan 6, 2025) · USGS hydrothermal explosions page · National Park Service news release (July 23, 2024) · Associated Press (July 2024) · Duan & Schmandt, Nature (2025) and Rice University News · Bennington et al., Nature (2025) · Mastin, Van Eaton & Lowenstern ash model (2014) · Cowboy State Daily (May 2, 2026) · Wyoming Public Media (Mar 19, 2026) · The Hill (Oct 2025) RELATED Yellowstone explosion 2026 · Biscuit Basin · Black Diamond Pool · hydrothermal explosion · Yellowstone supervolcano · Norris Geyser Basin uplift · Yellowstone magma cap · Mary Bay crater · Yellowstone Volcano Observatory Yellowstone's alert level is NORMAL and its aviation color code is GREEN. The U.S. Geological Survey reports no sign of an approaching volcanic eruption. Hydrothermal explosions are a separate hazard and can occur without warning. Biscuit Basin has been closed to visitors since July 2024. #Yellowstone #YellowstoneVolcano #BiscuitBasin #Supervolcano #USGS #HydrothermalExplosion #Wyoming #NationalParks #CrisisRadar