On September 19th, 2022 a large earthquake that rocked the Pacific Coast of Mexico made waves in Devils Hole—literally. The 7.6 magnitude event struck near the Colima-Michoacan border at 11:05 AM local time (PDT; 1:05 PM at the epicenter). NPS staff were onsite conducting research and witnessed the effects firsthand. Within five minutes, the normally still water in the pool began slowly moving, and soon built to waves several feet high! The highly endangered Devils Hole pupfish (Cyprinodon diabolis) has thankfully evolved with these types of periodic natural disturbances, and they were fine and swimming (happily?) afterward. Keeping with previous observations, staff expect to see an increase in spawning activity over the next few days, hopefully resulting in even more recruits into the population. Follow the link in our bio to learn more about Devils Hole. Read more about this earthquake and track other seismic activity around the world through the U.S. Geological Survey’s Earthquake Hazards Program online at usgs.gov Video: Waves crashing against rocky walls in Devils Hole. 📍 Devils Hole 📸: NPS/ A. Chaudoin