3.2

M3.2 Earthquake 108 km SE of Adak, AlaskaMay 4, 2026

2026-05-04 16:27:46 UTC (1 day ago) · approx. 4:27 AM UTC-12 local

MagnitudeM3.2(ml)
Time16:27 UTC4:27 AM UTC-12
Depth25.9 kmshallow crustal
Coordinates51.326°, -175.338°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 4, 2026 at 16:27 UTC, a magnitude 3.2 shallow crustal earthquake struck 108 km SE of Adak, Alaska, at a depth of 25.9 km and coordinates 51.3260°, -175.3380°.

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 51.33°, -175.34°

Earthquake Details

Magnitude
3.2 ml
Depth
25.9 km
shallow crustal
Location
51.3260°N
-175.3380°E

Technical Information

Event ID
aka2026iulqjd
Event Type
earthquake
Status
✓ Reviewed
Significance
158
Stations Used
23
Azimuthal Gap
248.0°
Min Station Distance
0.800°
RMS Residual
0.40 sec
Last Updated
2026-05-05 21:38:17 UTC

Common Questions

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

The magnitude 3.2 earthquake that struck 108 km SE of Adak, Alaska on May 4, 2026 at 16:27 UTC had a depth of 25.9 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. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: aka2026iulqjd). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, May 4, 2026). M3.2 Earthquake 108 km SE of Adak, AlaskaMay 4, 2026. Retrieved May 5, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026iulqjd/