July 2021 Flood and Earthquake at Devils Hole

Death Valley National Park


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.


2 minutes, 43 seconds


USGS / Peter Pearsall

Date Created


Copyright and Usage Info