3.0

M3.0 Earthquake near Rat Islands, Aleutian Islands, AlaskaAugust 19, 2026

2026-08-19 18:12:15 UTC (59 min ago) · approx. 6:12 AM UTC+12 local

MagnitudeM3.0(ml)
Time18:12 UTC6:12 AM UTC+12
Depth55.9 kmshallow crustal
Coordinates51.535°, 178.344°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 19, 2026 at 18:12 UTC, a magnitude 3.0 shallow crustal earthquake struck near Rat Islands, Aleutian Islands, Alaska, at a depth of 55.9 km and coordinates 51.5350°, 178.3440°.

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 51.53°, 178.34°

Earthquake Details

Magnitude
3.0 ml
Depth
55.9 km
shallow crustal
Location
51.5350°N
178.3440°E

Technical Information

Event ID
aka2026qkflvm
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
26
Azimuthal Gap
269.0°
Min Station Distance
0.400°
RMS Residual
0.50 sec
Last Updated
2026-08-19 18:23:39 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 August 19, 2026 at 18:12 UTC had a depth of 55.9 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: aka2026qkflvm). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 19, 2026). M3.0 Earthquake near Rat Islands, Aleutian Islands, AlaskaAugust 19, 2026. Retrieved August 19, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026qkflvm/