M3.1 Earthquake 18 km SSE of Sleepy Hollow, Wyoming — December 29, 2024
2024-12-29 21:06:07 UTC (2024-12-29) · approx. 2:06 PM UTC-7 local
On December 29, 2024 at 21:06 UTC, a magnitude 3.1 shallow crustal earthquake struck 18 km SSE of Sleepy Hollow, Wyoming, at a depth of 0.0 km and coordinates 44.0893°, -105.3156°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-105.3156°E
Technical Information
Common Questions
How strong was the magnitude 3.1 earthquake near Sleepy Hollow, Wyoming?
The magnitude 3.1 earthquake that struck 18 km SSE of Sleepy Hollow, Wyoming on December 29, 2024 at 21:06 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 3.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000pgcb). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, December 29, 2024). M3.1 Earthquake 18 km SSE of Sleepy Hollow, Wyoming — December 29, 2024. Retrieved March 8, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000pgcb/