3.8

M3.8 Earthquake 36 km NNE of False Pass, AlaskaNovember 2, 2025

2025-11-02 17:11:59 UTC (2025-11-02) · approx. 6:11 AM UTC-11 local

MagnitudeM3.8(mb)
Time17:11 UTC6:11 AM UTC-11
Depth189.1 kmintermediate depth
Coordinates55.175°, -163.297°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 2, 2025 at 17:11 UTC, a magnitude 3.8 intermediate depth earthquake struck 36 km NNE of False Pass, Alaska, at a depth of 189.1 km and coordinates 55.1750°, -163.2969°.

Physical scale: An earthquake of magnitude 3.8 releases seismic energy equivalent to roughly 7.6 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 252 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 55.17°, -163.30°

Earthquake Details

Magnitude
3.8 mb
Depth
189.1 km
intermediate depth
Location
55.1750°N
-163.2969°E

Technical Information

Event ID
us6000rl2g
Event Type
earthquake
Status
✓ Reviewed
Significance
222
Stations Used
46
Azimuthal Gap
133.0°
Min Station Distance
0.827°
RMS Residual
0.74 sec
Last Updated
2026-01-27 17:59:05 UTC

Common Questions

How strong was the magnitude 3.8 earthquake near False Pass, Alaska?

The magnitude 3.8 earthquake that struck 36 km NNE of False Pass, Alaska on November 2, 2025 at 17:11 UTC had a depth of 189.1 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 3.8 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: us6000rl2g). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, November 2, 2025). M3.8 Earthquake 36 km NNE of False Pass, AlaskaNovember 2, 2025. Retrieved May 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rl2g/