3.4

M3.4 Earthquake 64 km N of Petersville, AlaskaMay 5, 2025

2025-05-05 23:52:41 UTC (2025-05-05) · approx. 1:52 PM UTC-10 local

MagnitudeM3.4(ml)
Time23:52 UTC1:52 PM UTC-10
Depth114.1 kmintermediate depth
Coordinates63.076°, -150.907°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 5, 2025 at 23:52 UTC, a magnitude 3.4 intermediate depth earthquake struck 64 km N of Petersville, Alaska, at a depth of 114.1 km and coordinates 63.0756°, -150.9069°.

Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.9 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 134 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 63.08°, -150.91°

Earthquake Details

Magnitude
3.4 ml
Depth
114.1 km
intermediate depth
Location
63.0756°N
-150.9069°E

Technical Information

Event ID
ak0255r46l46
Event Type
earthquake
Status
✓ Reviewed
Significance
178
RMS Residual
0.49 sec
Last Updated
2025-07-12 16:30:46 UTC

Common Questions

How strong was the magnitude 3.4 earthquake near Petersville, Alaska?

The magnitude 3.4 earthquake that struck 64 km N of Petersville, Alaska on May 5, 2025 at 23:52 UTC had a depth of 114.1 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 3.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.4 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak0255r46l46). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, May 5, 2025). M3.4 Earthquake 64 km N of Petersville, AlaskaMay 5, 2025. Retrieved July 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/ak0255r46l46/