3.3

M3.3 Earthquake 134 km SE of Perryville, AlaskaJanuary 24, 2026

2026-01-24 17:40:28 UTC (2026-01-24) · approx. 6:40 AM UTC-11 local

MagnitudeM3.3(ml)
Time17:40 UTC6:40 AM UTC-11
Depth22.7 kmshallow crustal
Coordinates54.965°, -157.829°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 24, 2026 at 17:40 UTC, a magnitude 3.3 shallow crustal earthquake struck 134 km SE of Perryville, Alaska, at a depth of 22.7 km and coordinates 54.9650°, -157.8290°.

Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 114 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 54.97°, -157.83°

Earthquake Details

Magnitude
3.3 ml
Depth
22.7 km
shallow crustal
Location
54.9650°N
-157.8290°E

Technical Information

Event ID
ak2026browqm
Event Type
earthquake
Status
✓ Reviewed
Significance
168
Stations Used
24
Azimuthal Gap
221.0°
Min Station Distance
1.400°
RMS Residual
0.80 sec
Last Updated
2026-04-21 16:27:54 UTC

Common Questions

How strong was the magnitude 3.3 earthquake near Perryville, Alaska?

The magnitude 3.3 earthquake that struck 134 km SE of Perryville, Alaska on January 24, 2026 at 17:40 UTC had a depth of 22.7 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 3.3 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: ak2026browqm). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, January 24, 2026). M3.3 Earthquake 134 km SE of Perryville, AlaskaJanuary 24, 2026. Retrieved May 15, 2026 from https://www.earthquaketracker.org/earthquakes/event/ak2026browqm/