M3.1 Earthquake 18 km NNE of Maeser, Utah — October 2, 2025
2025-10-02 23:32:36 UTC (2025-10-02) · approx. 4:32 PM UTC-7 local
On October 2, 2025 at 23:32 UTC, a magnitude 3.1 shallow crustal earthquake struck 18 km NNE of Maeser, Utah, at a depth of 0.0 km and coordinates 40.6284°, -109.5071°.
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
-109.5071°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Maeser, Utah?
The magnitude 3.1 earthquake that struck 18 km NNE of Maeser, Utah on October 2, 2025 at 23:32 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: us6000redl). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, October 2, 2025). M3.1 Earthquake 18 km NNE of Maeser, Utah — October 2, 2025. Retrieved December 19, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000redl/