'Clogged-up' underground system caused Yellowstone's powerful hydrothermal explosion A clogged-up underground system caused the powerful hydrothermal explosion at Yellowstone's Black Diamond Pool last summer, according to the U.S. Geological Survey (USGS). Minerals had sealed off channels beneath the pool in Biscuit Basin, trapping pressure that eventually led to the blast. On July 23, 2024, the explosion hurled large rocks and debris hundreds of...
