3.3

M3.3 Earthquake 3 km NW of Little America, WyomingJuly 25, 2026

2026-07-25 20:32:21 UTC (1 hour ago) · approx. 1:32 PM UTC-7 local

MagnitudeM3.3(ml)
Time20:32 UTC1:32 PM UTC-7
Depth-3.4 kmshallow crustal
Coordinates41.562°, -109.890°
Felt by1DYFI response
Status✓ Reviewed by USGS

On July 25, 2026 at 20:32 UTC, a magnitude 3.3 shallow crustal earthquake struck 3 km NW of Little America, Wyoming, at a depth of -3.4 km and coordinates 41.5615°, -109.8897°.

Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 110 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 41.56°, -109.89°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M3.3 earthquake near 3 km NW of Little America, Wyoming

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
3.3 ml
Depth
-3.4 km
shallow crustal
Location
41.5615°N
-109.8897°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
uu80146416
Event Type
earthquake
Status
✓ Reviewed
Significance
166
Stations Used
44
Azimuthal Gap
127.0°
Min Station Distance
0.113°
RMS Residual
0.32 sec
Last Updated
2026-07-25 20:42:45 UTC

Common Questions

How strong was the magnitude 3.3 earthquake near Little America, Wyoming?

The magnitude 3.3 earthquake that struck 3 km NW of Little America, Wyoming on July 25, 2026 at 20:32 UTC had a depth of -3.4 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 3.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.3 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: uu80146416). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 25, 2026). M3.3 Earthquake 3 km NW of Little America, WyomingJuly 25, 2026. Retrieved July 25, 2026 from https://www.earthquaketracker.org/earthquakes/event/uu80146416/