Recent earthquakes in Wyoming
Wyoming's seismicity is dominated by the Yellowstone volcanic system in the northwest and the Teton Fault along the base of the Teton Range. Yellowstone produces frequent earthquake swarms driven by magma and hydrothermal activity, most of them small. The Teton Fault is capable of a large earthquake, and the 1959 Hebgen Lake earthquake nearby demonstrated the region's potential. In the past 24 hours, Wyoming has recorded no earthquakes above the reporting threshold.
Counts include M2.5+ events — the smallest size USGS reports consistently worldwide.
Recent earthquakes
| Magnitude | Time (UTC) | Depth | Location |
|---|---|---|---|
| M2.5 | Oct 25, 09:38 UTC | 12 km | 12 km N of Powell, Wyoming |
| M3.2 | Oct 22, 09:44 UTC | -2 km | 3 km NW of Little America, Wyoming |
Notable recent activity
An M3.2 earthquake struck 3 km NW of Little America, Wyoming at 09:44 UTC on Oct 22 at a depth of -2 km.
An M2.5 earthquake struck 12 km N of Powell, Wyoming at 09:38 UTC on Oct 25 at a depth of 12 km.
Frequently asked questions
Why does Wyoming have earthquakes?
Northwestern Wyoming is shaped by the Yellowstone hotspot and by Basin and Range extension, which drives the Teton Fault. Together they make this corner of the state seismically active, while most of Wyoming is comparatively quiet.
Does Yellowstone cause earthquakes?
Yes. The Yellowstone volcanic system produces thousands of small earthquakes a year, mostly in swarms tied to the movement of underground fluids and magma. Nearly all are too small to cause damage, and they are closely monitored.
Is the Teton Fault dangerous?
The Teton Fault at the base of the Teton Range is capable of a magnitude 7 earthquake and has produced large earthquakes in the geologic past. Studies indicate it has not had a major rupture in several thousand years, making it a long-term hazard.
Nearby regions
Live data from the USGS earthquake feeds. Magnitudes and depths are automated readings and may be revised. Not for emergency use.