3.1

M3.1 Earthquake 96 km WNW of Arctic Village, AlaskaNovember 18, 2025

2025-11-18 22:34:49 UTC (2025-11-18) · approx. 12:34 PM UTC-10 local

MagnitudeM3.1(ml)
Time22:34 UTC12:34 PM UTC-10
Depth5.5 kmshallow crustal
Coordinates68.612°, -147.492°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 18, 2025 at 22:34 UTC, a magnitude 3.1 shallow crustal earthquake struck 96 km WNW of Arctic Village, Alaska, at a depth of 5.5 km and coordinates 68.6120°, -147.4916°.

Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 640 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 81 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 68.61°, -147.49°

Earthquake Details

Magnitude
3.1 ml
Depth
5.5 km
shallow crustal
Location
68.6120°N
-147.4916°E

Technical Information

Event ID
ak2025wsyzrh
Event Type
earthquake
Status
✓ Reviewed
Significance
146
Stations Used
37
Azimuthal Gap
42.0°
Min Station Distance
0.654°
RMS Residual
0.85 sec
Last Updated
2026-02-10 15:55:14 UTC

Common Questions

How strong was the magnitude 3.1 earthquake near Arctic Village, Alaska?

The magnitude 3.1 earthquake that struck 96 km WNW of Arctic Village, Alaska on November 18, 2025 at 22:34 UTC had a depth of 5.5 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.

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: ak2025wsyzrh). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, November 18, 2025). M3.1 Earthquake 96 km WNW of Arctic Village, AlaskaNovember 18, 2025. Retrieved May 25, 2026 from https://www.earthquaketracker.org/earthquakes/event/ak2025wsyzrh/