3.0

M3.0 Earthquake 158 km ESE of Akutan, AlaskaJune 16, 2026

2026-06-16 01:47:22 UTC (23 hours ago) · approx. 2:47 PM UTC-11 local

MagnitudeM3.0(ml)
Time01:47 UTC2:47 PM UTC-11
Depth18.5 kmshallow crustal
Coordinates53.431°, -163.685°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 16, 2026 at 01:47 UTC, a magnitude 3.0 shallow crustal earthquake struck 158 km ESE of Akutan, Alaska, at a depth of 18.5 km and coordinates 53.4310°, -163.6850°.

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 53.43°, -163.69°

Earthquake Details

Magnitude
3.0 ml
Depth
18.5 km
shallow crustal
Location
53.4310°N
-163.6850°E

Technical Information

Event ID
aka2026lutfla
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
45
Azimuthal Gap
220.0°
Min Station Distance
1.200°
RMS Residual
0.50 sec
Last Updated
2026-06-16 22:55:00 UTC

Common Questions

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

The magnitude 3.0 earthquake that struck 158 km ESE of Akutan, Alaska on June 16, 2026 at 01:47 UTC had a depth of 18.5 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: aka2026lutfla). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 16, 2026). M3.0 Earthquake 158 km ESE of Akutan, AlaskaJune 16, 2026. Retrieved June 17, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026lutfla/