M3.1 Earthquake 2 km NNW of Little America, Wyoming — August 3, 2026
2026-08-03 04:29:50 UTC (2026-08-03) · approx. 9:29 PM UTC-7 local
On August 3, 2026 at 04:29 UTC, a magnitude 3.1 shallow crustal earthquake struck 2 km NNW of Little America, Wyoming, at a depth of 0.5 km and coordinates 41.5633°, -109.8667°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 722 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 86 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-109.8667°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.1 earthquake near Little America, Wyoming?
The magnitude 3.1 earthquake that struck 2 km NNW of Little America, Wyoming on August 3, 2026 at 04:29 UTC had a depth of 0.5 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.1 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: uu80146951). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 3, 2026). M3.1 Earthquake 2 km NNW of Little America, Wyoming — August 3, 2026. Retrieved August 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/uu80146951/