3.0

M3.0 Earthquake 105 km SSW of False Pass, AlaskaDecember 7, 2025

2025-12-07 22:30:49 UTC (2025-12-07) · approx. 11:30 AM UTC-11 local

MagnitudeM3.0(ml)
Time22:30 UTC11:30 AM UTC-11
Depth35.0 kmshallow crustal
Coordinates53.976°, -164.020°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 7, 2025 at 22:30 UTC, a magnitude 3.0 shallow crustal earthquake struck 105 km SSW of False Pass, Alaska, at a depth of 35.0 km and coordinates 53.9761°, -164.0196°.

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 53.98°, -164.02°

Earthquake Details

Magnitude
3.0 ml
Depth
35.0 km
shallow crustal
Location
53.9761°N
-164.0196°E

Technical Information

Event ID
us7000rn1w
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
40
Azimuthal Gap
206.0°
Min Station Distance
0.598°
RMS Residual
0.77 sec
Last Updated
2026-03-04 18:45:10 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near False Pass, Alaska?

The magnitude 3.0 earthquake that struck 105 km SSW of False Pass, Alaska on December 7, 2025 at 22:30 UTC had a depth of 35.0 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.

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: us7000rn1w). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, December 7, 2025). M3.0 Earthquake 105 km SSW of False Pass, AlaskaDecember 7, 2025. Retrieved May 24, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000rn1w/