3.1

M3.1 Earthquake 9 km NNE of Ivanof Bay, AlaskaApril 25, 2026

2026-04-25 22:16:06 UTC (2026-04-25) · approx. 11:16 AM UTC-11 local

MagnitudeM3.1(ml)
Time22:16 UTC11:16 AM UTC-11
Depth107.4 kmintermediate depth
Coordinates55.981°, -159.447°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 25, 2026 at 22:16 UTC, a magnitude 3.1 intermediate depth earthquake struck 9 km NNE of Ivanof Bay, Alaska, at a depth of 107.4 km and coordinates 55.9810°, -159.4470°.

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.

Map showing earthquake epicenter at 55.98°, -159.45°

Earthquake Details

Magnitude
3.1 ml
Depth
107.4 km
intermediate depth
Location
55.9810°N
-159.4470°E

Technical Information

Event ID
aka2026iczbrx
Event Type
earthquake
Status
✓ Reviewed
Significance
148
Stations Used
57
Azimuthal Gap
178.0°
Min Station Distance
0.100°
RMS Residual
0.60 sec
Last Updated
2026-05-11 22:48:23 UTC

Common Questions

How strong was the magnitude 3.1 earthquake near Ivanof Bay, Alaska?

The magnitude 3.1 earthquake that struck 9 km NNE of Ivanof Bay, Alaska on April 25, 2026 at 22:16 UTC had a depth of 107.4 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: aka2026iczbrx). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, April 25, 2026). M3.1 Earthquake 9 km NNE of Ivanof Bay, AlaskaApril 25, 2026. Retrieved May 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026iczbrx/