3.2

M3.2 Earthquake 191 km SSE of Adak, AlaskaJanuary 17, 2026

2026-01-17 22:53:16 UTC (2026-01-17) · approx. 10:53 AM UTC-12 local

MagnitudeM3.2(ml)
Time22:53 UTC10:53 AM UTC-12
Depth20.0 kmshallow crustal
Coordinates50.380°, -175.282°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 17, 2026 at 22:53 UTC, a magnitude 3.2 shallow crustal earthquake struck 191 km SSE of Adak, Alaska, at a depth of 20.0 km and coordinates 50.3800°, -175.2820°.

Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 951 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 97 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 50.38°, -175.28°

Earthquake Details

Magnitude
3.2 ml
Depth
20.0 km
shallow crustal
Location
50.3800°N
-175.2820°E

Technical Information

Event ID
ak2026bfddng
Event Type
earthquake
Status
✓ Reviewed
Significance
158
Stations Used
22
Azimuthal Gap
234.0°
Min Station Distance
1.600°
RMS Residual
1.40 sec
Last Updated
2026-06-18 19:26:50 UTC

Common Questions

How strong was the magnitude 3.2 earthquake near Adak, Alaska?

The magnitude 3.2 earthquake that struck 191 km SSE of Adak, Alaska on January 17, 2026 at 22:53 UTC had a depth of 20.0 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 3.2 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.

Understanding This Data

Magnitude 3.2 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak2026bfddng). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, January 17, 2026). M3.2 Earthquake 191 km SSE of Adak, AlaskaJanuary 17, 2026. Retrieved June 18, 2026 from https://www.earthquaketracker.org/earthquakes/event/ak2026bfddng/