3.0

M3.0 Earthquake 270 km SSE of King Cove, AlaskaNovember 23, 2025

2025-11-23 19:19:02 UTC (2025-11-23) · approx. 8:19 AM UTC-11 local

MagnitudeM3.0(ml)
Time19:19 UTC8:19 AM UTC-11
Depth10.0 kmshallow crustal
Coordinates52.690°, -161.392°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 23, 2025 at 19:19 UTC, a magnitude 3.0 shallow crustal earthquake struck 270 km SSE of King Cove, Alaska, at a depth of 10.0 km and coordinates 52.6899°, -161.3922°.

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 52.69°, -161.39°

Earthquake Details

Magnitude
3.0 ml
Depth
10.0 km
shallow crustal
Location
52.6899°N
-161.3922°E

Technical Information

Event ID
us6000s8c4
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
19
Azimuthal Gap
238.0°
Min Station Distance
2.351°
RMS Residual
0.71 sec
Last Updated
2026-02-20 16:07:40 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near King Cove, Alaska?

The magnitude 3.0 earthquake that struck 270 km SSE of King Cove, Alaska on November 23, 2025 at 19:19 UTC had a depth of 10.0 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: us6000s8c4). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, November 23, 2025). M3.0 Earthquake 270 km SSE of King Cove, AlaskaNovember 23, 2025. Retrieved May 25, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000s8c4/