4.4

M4.4 Earthquake 112 km S of Vilyuchinsk, RussiaOctober 30, 2025

2025-10-30 15:45:55 UTC (2025-10-30) · approx. 2:45 AM UTC+11 local

MagnitudeM4.4(mb)
Time15:45 UTC2:45 AM UTC+11
Depth78.7 kmintermediate depth
Coordinates51.925°, 158.226°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 30, 2025 at 15:45 UTC, a magnitude 4.4 intermediate depth earthquake struck 112 km S of Vilyuchinsk, Russia, at a depth of 78.7 km and coordinates 51.9253°, 158.2265°.

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 51.93°, 158.23°

Earthquake Details

Magnitude
4.4 mb
Depth
78.7 km
intermediate depth
Location
51.9253°N
158.2265°E

Technical Information

Event ID
us6000rp70
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
35
Azimuthal Gap
162.0°
Min Station Distance
1.228°
RMS Residual
0.62 sec
Last Updated
2026-01-27 17:59:09 UTC

Common Questions

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

The magnitude 4.4 earthquake that struck 112 km S of Vilyuchinsk, Russia on October 30, 2025 at 15:45 UTC had a depth of 78.7 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: us6000rp70). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, October 30, 2025). M4.4 Earthquake 112 km S of Vilyuchinsk, RussiaOctober 30, 2025. Retrieved May 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rp70/