On July 26, 2021, monsoonal rains at Ash Meadows National Wildlife Refuge triggered a rare flash flood at Devils Hole, depositing mud and rocky debris into the pool. Two days after the flood, the magnitude 8.2 Chignik Earthquake struck the Alaska Peninsula. Despite the epicenter being more than 2,300 miles away, the earthquake caused a seiche that redistributed some of the flood debris. A USGS gauge shows how water levels fluctuated with each event. Learn about the impacts of these disturbance events.
On Friday, July 5th, 2019, a 7.1 M earthquake impacted Devils Hole. The waves created by the earthquake caused the water to raise and drop at least 10-15 ft. The fish seem to be in good condition with spawning behavior occurring.