3.0

M3.0 Earthquake 8 km SSE of Sleepy Hollow, WyomingMarch 18, 2025

2025-03-18 18:19:10 UTC (2025-03-18) · approx. 11:19 AM UTC-7 local

MagnitudeM3.0(ml)
Time18:19 UTC11:19 AM UTC-7
Depth0.0 kmshallow crustal
Coordinates44.171°, -105.367°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 18, 2025 at 18:19 UTC, a magnitude 3.0 shallow crustal earthquake struck 8 km SSE of Sleepy Hollow, Wyoming, at a depth of 0.0 km and coordinates 44.1709°, -105.3672°.

Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 477 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 71 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 44.17°, -105.37°

Earthquake Details

Magnitude
3.0 ml
Depth
0.0 km
shallow crustal
Location
44.1709°N
-105.3672°E

Technical Information

Event ID
us7000pn3k
Event Type
mining explosion
Status
✓ Reviewed
Significance
138
Stations Used
14
Azimuthal Gap
116.0°
Min Station Distance
0.960°
RMS Residual
0.83 sec
Last Updated
2025-05-17 19:20:03 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near Sleepy Hollow, Wyoming?

The magnitude 3.0 earthquake that struck 8 km SSE of Sleepy Hollow, Wyoming on March 18, 2025 at 18:19 UTC had a depth of 0.0 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 3.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.0 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000pn3k). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, March 18, 2025). M3.0 Earthquake 8 km SSE of Sleepy Hollow, WyomingMarch 18, 2025. Retrieved May 17, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pn3k/