3.0

M3.0 Earthquake 60 km SE of False Pass, Alaska — September 28, 2026

2026-09-28 11:03:45 UTC (1 day ago) · approx. 12:03 AM UTC-11 local

MagnitudeM3.0(ml)
Time11:03 UTC≈ 12:03 AM UTC-11
Depth67.4 kmshallow crustal
Coordinates54.502°, -162.690°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 28, 2026 at 11:03 UTC, a magnitude 3.0 shallow crustal earthquake struck 60 km SE of False Pass, Alaska, at a depth of 67.4 km and coordinates 54.5020°, -162.6900°.

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 54.50°, -162.69°

Earthquake Details

Magnitude
3.0 ml
Depth
67.4 km
shallow crustal
Location
54.5020°N
-162.6900°E

Technical Information

Event ID
aka2026tfoaya
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
29
Azimuthal Gap
219.0°
Min Station Distance
0.500°
RMS Residual
0.50 sec
Last Updated
2026-09-29 22:54:22 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near False Pass, Alaska?

The magnitude 3.0 earthquake that struck 60 km SE of False Pass, Alaska on September 28, 2026 at 11:03 UTC had a depth of 67.4 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.

Understanding This Data

Magnitude 3.0 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: aka2026tfoaya). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, September 28, 2026). M3.0 Earthquake 60 km SE of False Pass, Alaska — September 28, 2026. Retrieved September 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026tfoaya/