3.0

M3.0 Earthquake near Rat Islands, Aleutian Islands, AlaskaJuly 29, 2026

2026-07-29 05:46:27 UTC (12 hours ago) · approx. 5:46 PM UTC+12 local

MagnitudeM3.0(ml)
Time05:46 UTC5:46 PM UTC+12
Depth96.1 kmintermediate depth
Coordinates51.719°, 178.553°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 29, 2026 at 05:46 UTC, a magnitude 3.0 intermediate depth earthquake struck near Rat Islands, Aleutian Islands, Alaska, at a depth of 96.1 km and coordinates 51.7190°, 178.5530°.

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 51.72°, 178.55°

Earthquake Details

Magnitude
3.0 ml
Depth
96.1 km
intermediate depth
Location
51.7190°N
178.5530°E

Technical Information

Event ID
aka2026owmczh
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
26
Azimuthal Gap
228.0°
Min Station Distance
0.200°
RMS Residual
0.40 sec
Last Updated
2026-07-29 18:02:19 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near Rat Islands, Aleutian Islands, Alaska?

The magnitude 3.0 earthquake that struck near Rat Islands, Aleutian Islands, Alaska on July 29, 2026 at 05:46 UTC had a depth of 96.1 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 3.0 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: aka2026owmczh). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 29, 2026). M3.0 Earthquake near Rat Islands, Aleutian Islands, AlaskaJuly 29, 2026. Retrieved July 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026owmczh/