3.9

M3.9 Earthquake near Rat Islands, Aleutian Islands, AlaskaNovember 26, 2024

2024-11-26 21:28:14 UTC (2024-11-26) · approx. 9:28 AM UTC+12 local

MagnitudeM3.9(mb)
Time21:28 UTC9:28 AM UTC+12
Depth10.0 kmshallow crustal
Coordinates50.076°, 179.865°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 26, 2024 at 21:28 UTC, a magnitude 3.9 shallow crustal earthquake struck near Rat Islands, Aleutian Islands, Alaska, at a depth of 10.0 km and coordinates 50.0757°, 179.8651°.

Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 11 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 296 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 50.08°, 179.87°

Earthquake Details

Magnitude
3.9 mb
Depth
10.0 km
shallow crustal
Location
50.0757°N
179.8651°E

Technical Information

Event ID
us7000nue7
Event Type
earthquake
Status
✓ Reviewed
Significance
234
Stations Used
70
Azimuthal Gap
220.0°
Min Station Distance
1.352°
RMS Residual
0.70 sec
Last Updated
2025-02-02 00:52:19 UTC

Common Questions

How strong was the magnitude 3.9 earthquake near Rat Islands, Aleutian Islands, Alaska?

The magnitude 3.9 earthquake that struck near Rat Islands, Aleutian Islands, Alaska on November 26, 2024 at 21:28 UTC had a depth of 10.0 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 3.9 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.9 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000nue7). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, November 26, 2024). M3.9 Earthquake near Rat Islands, Aleutian Islands, AlaskaNovember 26, 2024. Retrieved February 2, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000nue7/