4.4

M4.4 Earthquake 141 km SE of Vilyuchinsk, RussiaOctober 3, 2025

2025-10-03 18:47:20 UTC (2025-10-03) · approx. 5:47 AM UTC+11 local

MagnitudeM4.4(mb)
Time18:47 UTC5:47 AM UTC+11
Depth61.6 kmshallow crustal
Coordinates51.912°, 159.637°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 3, 2025 at 18:47 UTC, a magnitude 4.4 shallow crustal earthquake struck 141 km SE of Vilyuchinsk, Russia, at a depth of 61.6 km and coordinates 51.9120°, 159.6371°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 51.91°, 159.64°

Earthquake Details

Magnitude
4.4 mb
Depth
61.6 km
shallow crustal
Location
51.9120°N
159.6371°E

Technical Information

Event ID
us6000reml
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
61
Azimuthal Gap
138.0°
Min Station Distance
1.266°
RMS Residual
0.58 sec
Last Updated
2025-12-19 22:49:53 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Vilyuchinsk, Russia?

The magnitude 4.4 earthquake that struck 141 km SE of Vilyuchinsk, Russia on October 3, 2025 at 18:47 UTC had a depth of 61.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us6000reml). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, October 3, 2025). M4.4 Earthquake 141 km SE of Vilyuchinsk, RussiaOctober 3, 2025. Retrieved May 27, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000reml/