3.2

M3.2 Earthquake 82 km S of Unalaska, AlaskaDecember 26, 2024

2024-12-26 22:22:47 UTC (2024-12-26) · approx. 11:22 AM UTC-11 local

MagnitudeM3.2(ml)
Time22:22 UTC11:22 AM UTC-11
Depth26.3 kmshallow crustal
Coordinates53.141°, -166.653°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 26, 2024 at 22:22 UTC, a magnitude 3.2 shallow crustal earthquake struck 82 km S of Unalaska, Alaska, at a depth of 26.3 km and coordinates 53.1407°, -166.6525°.

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 53.14°, -166.65°

Earthquake Details

Magnitude
3.2 ml
Depth
26.3 km
shallow crustal
Location
53.1407°N
-166.6525°E

Technical Information

Event ID
us6000plx2
Event Type
earthquake
Status
✓ Reviewed
Significance
158
Stations Used
23
Azimuthal Gap
207.0°
Min Station Distance
0.668°
RMS Residual
0.57 sec
Last Updated
2025-03-08 22:39:18 UTC

Common Questions

How strong was the magnitude 3.2 earthquake near Unalaska, Alaska?

The magnitude 3.2 earthquake that struck 82 km S of Unalaska, Alaska on December 26, 2024 at 22:22 UTC had a depth of 26.3 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: us6000plx2). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, December 26, 2024). M3.2 Earthquake 82 km S of Unalaska, AlaskaDecember 26, 2024. Retrieved March 8, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000plx2/