3.2

M3.2 Earthquake 210 km SSE of Unalaska, AlaskaMarch 6, 2025

2025-03-06 16:00:04 UTC (2025-03-06) · approx. 5:00 AM UTC-11 local

MagnitudeM3.2(ml)
Time16:00 UTC5:00 AM UTC-11
Depth10.0 kmshallow crustal
Coordinates52.207°, -165.054°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 6, 2025 at 16:00 UTC, a magnitude 3.2 shallow crustal earthquake struck 210 km SSE of Unalaska, Alaska, at a depth of 10.0 km and coordinates 52.2068°, -165.0542°.

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 52.21°, -165.05°

Earthquake Details

Magnitude
3.2 ml
Depth
10.0 km
shallow crustal
Location
52.2068°N
-165.0542°E

Technical Information

Event ID
us6000q4tg
Event Type
earthquake
Status
✓ Reviewed
Significance
158
Stations Used
19
Azimuthal Gap
244.0°
Min Station Distance
1.860°
RMS Residual
0.38 sec
Last Updated
2025-05-16 17:30:07 UTC

Common Questions

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

The magnitude 3.2 earthquake that struck 210 km SSE of Unalaska, Alaska on March 6, 2025 at 16:00 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 3.2 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: us6000q4tg). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, March 6, 2025). M3.2 Earthquake 210 km SSE of Unalaska, AlaskaMarch 6, 2025. Retrieved May 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000q4tg/