2.6

M2.6 Earthquake 5 km NNE of Star Valley Ranch, WyomingOctober 23, 2025

2025-10-23 18:15:02 UTC (2025-10-23) · approx. 11:15 AM UTC-7 local

MagnitudeM2.6(ml)
Time18:15 UTC11:15 AM UTC-7
Depth5.0 kmshallow crustal
Coordinates43.015°, -110.929°
Felt by9DYFI responses
Status✓ Reviewed by USGS

On October 23, 2025 at 18:15 UTC, a magnitude 2.6 shallow crustal earthquake struck 5 km NNE of Star Valley Ranch, Wyoming, at a depth of 5.0 km and coordinates 43.0153°, -110.9288°.

Physical scale: An earthquake of magnitude 2.6 releases seismic energy equivalent to roughly 120 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 37 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 43.02°, -110.93°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 9 citizen responses 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 M2.6 earthquake near 5 km NNE of Star Valley Ranch, Wyoming

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

Earthquake Details

Magnitude
2.6 ml
Depth
5.0 km
shallow crustal
Location
43.0153°N
-110.9288°E
Felt Reports
9
DYFI responses
Community Intensity
3.8
CDI from reports

Technical Information

Event ID
us6000rizf
Event Type
earthquake
Status
✓ Reviewed
Significance
107
Stations Used
37
Azimuthal Gap
78.0°
Min Station Distance
0.462°
RMS Residual
0.32 sec
Last Updated
2026-01-15 22:46:49 UTC

Common Questions

How strong was the magnitude 2.6 earthquake near Star Valley Ranch, Wyoming?

The magnitude 2.6 earthquake that struck 5 km NNE of Star Valley Ranch, Wyoming on October 23, 2025 at 18:15 UTC had a depth of 5.0 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 2.6 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us6000rizf). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, October 23, 2025). M2.6 Earthquake 5 km NNE of Star Valley Ranch, WyomingOctober 23, 2025. Retrieved May 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rizf/