🌋 Yellowstone Earthquake Update – March to April 2025 🌋 70 earthquakes were recorded around the Yellowstone Caldera in March, including two swarms near West Yellowstone. Ground movement continues, and quake activity has now spread into Montana, Wyoming, and Utah. While the volcano alert level remains normal, increased activity around Steamboat Geyser and ongoing subsidence are being closely monitored. We’ll release another Yellowstone update when the next round of official data comes in. If an

Yellowstone Volcano Observatory monthly update July 1, 2025, 10:27 a.m. MDT https://ow.ly/NmoN50WjbVj SUMMARY Yellowstone Caldera activity remains at background levels, with 60 located earthquakes in June (largest = M2.7). Deformation measurements indicate that the annual summertime pause in long-term caldera subsidence started in June. Another small eruption of Black Diamond Pool in Biscuit Basin was recorded by a webcam on June 12 at 6:25 a.m. MDT (see attached video). RECENT WORK AND NEWS Min

Gas pistoning has been happening at Kīlauea today as episode 25 approaches. What causes this? Gas accumulates near the top of the lava column within the vent, causing the lava surface to rise (the "piston"). Eventually, gas escapes as spatter/lava is erupted, and lava drains back into the vent. You can watch this process in one of the three livestream camera views of Kīlauea summit available through the USGS Hawaiian Volcano Observatory: V1cam: https://www.youtube.com/watch?v=oG5zz9Sjw3E V2cam: