3.0

M3.0 Earthquake 168 km S of Adak, AlaskaMay 27, 2026

2026-05-27 10:29:24 UTC (10 hours ago) · approx. 10:29 PM UTC-12 local

MagnitudeM3.0(ml)
Time10:29 UTC10:29 PM UTC-12
Depth7.7 kmshallow crustal
Coordinates50.387°, -176.199°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 27, 2026 at 10:29 UTC, a magnitude 3.0 shallow crustal earthquake struck 168 km S of Adak, Alaska, at a depth of 7.7 km and coordinates 50.3870°, -176.1990°.

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 50.39°, -176.20°

Earthquake Details

Magnitude
3.0 ml
Depth
7.7 km
shallow crustal
Location
50.3870°N
-176.1990°E

Technical Information

Event ID
aka2026kkmete
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
15
Azimuthal Gap
308.0°
Min Station Distance
1.500°
RMS Residual
0.20 sec
Last Updated
2026-05-27 18:27:50 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near Adak, Alaska?

The magnitude 3.0 earthquake that struck 168 km S of Adak, Alaska on May 27, 2026 at 10:29 UTC had a depth of 7.7 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 3.0 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: aka2026kkmete). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, May 27, 2026). M3.0 Earthquake 168 km S of Adak, AlaskaMay 27, 2026. Retrieved May 27, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026kkmete/