3.2

M3.2 Earthquake 233 km ESE of Attu Station, AlaskaAugust 12, 2026

2026-08-12 03:03:03 UTC (19 hours ago) · approx. 3:03 PM UTC+12 local

MagnitudeM3.2(ml)
Time03:03 UTC3:03 PM UTC+12
Depth12.1 kmshallow crustal
Coordinates52.015°, 176.342°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 12, 2026 at 03:03 UTC, a magnitude 3.2 shallow crustal earthquake struck 233 km ESE of Attu Station, Alaska, at a depth of 12.1 km and coordinates 52.0147°, 176.3419°.

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 52.01°, 176.34°

Earthquake Details

Magnitude
3.2 ml
Depth
12.1 km
shallow crustal
Location
52.0147°N
176.3419°E

Technical Information

Event ID
us6000tk9v
Event Type
earthquake
Status
✓ Reviewed
Significance
158
Stations Used
8
Azimuthal Gap
190.0°
Min Station Distance
1.343°
RMS Residual
0.31 sec
Last Updated
2026-08-12 22:08:38 UTC

Common Questions

How strong was the magnitude 3.2 earthquake near Attu Station, Alaska?

The magnitude 3.2 earthquake that struck 233 km ESE of Attu Station, Alaska on August 12, 2026 at 03:03 UTC had a depth of 12.1 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.

Understanding This Data

Magnitude 3.2 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000tk9v). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 12, 2026). M3.2 Earthquake 233 km ESE of Attu Station, AlaskaAugust 12, 2026. Retrieved August 12, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tk9v/