US state · live catalogue
Earthquakes in Wyoming
In the last 30 days, 5 earthquakes of magnitude 2.5 or greater were recorded in Wyoming; the largest was a magnitude 3.8 earthquake 37 km NW of Green River, Wyoming, United States on 12 Sep 2026.
Data: USGS · updated · sources and licences
- 24 hours
- 0
- all magnitudes
- 7 days
- 0
- M2.5+
- 30 days
- 5
- M2.5+
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Last 24 hours
No earthquakes recorded in Wyoming in the last 24 hours.
Earlier this week, magnitude 2.5 and above
None of magnitude 2.5 or greater earlier this week.
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Largest in the last 30 days
| Mag | Location | Time (UTC) |
|---|---|---|
| 3.8ml | 37 km NW of Green River, Wyoming, United States | |
| 3.4ml | 34 km W of Green River, Wyoming, United States | |
| 3.1ml | 35 km W of Green River, Wyoming, United States | |
| 2.9ml | 39 km ENE of Rock Springs, Wyoming, United States | |
| 2.8ml | 33 km W of Green River, Wyoming, United States |
Where they occurred
Largest since 1900
Magnitude 6 and above in Wyoming.
No earthquakes of magnitude 6 or greater are listed in Wyoming in the USGS catalogue since 1900.
About earthquakes in Wyoming
Most earthquakes in Wyoming are recorded in and around Yellowstone National Park, typically 1,500 to 2,500 per year, often in swarms. They are mostly small and are caused by the movement of hydrothermal fluids and by regional faulting, not by eruptions.
The Teton fault along the eastern front of the Teton Range has produced large earthquakes in the geologic past.
Local monitoring and information: USGS Yellowstone Volcano Observatory.
Earthquake preparedness checklist · Earthquakes today worldwide
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Questions
How many earthquakes happen in Wyoming?
In the last 30 days, 5 earthquakes of magnitude 2.5 or greater were recorded in Wyoming, 0 of them in the last 7 days. In the last 24 hours, 0 earthquakes of any magnitude were recorded. Most small earthquakes are not felt.
What was the largest recent earthquake in Wyoming?
The largest in the last 30 days was a magnitude 3.8 earthquake 37 km NW of Green River, Wyoming, United States on 12 Sep 2026, at a depth of 4 km.
How deep are earthquakes in Wyoming?
100% of the magnitude 2.5+ earthquakes recorded in Wyoming in the last 30 days were shallower than 70 km. Shallow earthquakes generally cause stronger shaking at the surface than deep ones of the same magnitude.
Where can I get official earthquake information for Wyoming?
For official information, warnings and safety advice, follow USGS Yellowstone Volcano Observatory (https://www.usgs.gov/observatories/yvo) and your local civil protection authority. This site compiles agency reports and is not a warning service.
How are earthquakes assigned to Wyoming on this page?
An earthquake is listed in Wyoming when the nearest town to its epicentre, within 200 km, is in the state. Earthquakes farther offshore are not included. Counts of magnitude 2.5 and above are comparable between states; smaller earthquakes depend on how dense the local seismic network is.
Can earthquakes be predicted?
No. Scientists can estimate how likely strong shaking is in a region over years or decades, but no method predicts the time, place and size of a specific earthquake. Aftershocks are expected after large earthquakes and become less frequent over time.