Black Diamond Pool (Biscuit Basin, Yellowstone National Park) eruption on May 31, 2025

This video, recorded by a webcam, shows a small eruption from Black Diamond Pool in the Biscuit Basin subbasin of Upper Geyser Basin, Yellowstone National Park, at 8:39 p.m. MDT on May 31, 2025.  The pool was the site of a hydrothermal explosion on July 23, 2024.  Following that event, numerous smaller eruptions occurred from the pool, although few were witnessed because the area was closed to visitors.  The webcam was deployed on May 14, 2025, for the purpose of monitoring the pool and better understanding the nature of post-explosion activity.