4.0

M4.0 Earthquake 118 km SSE of Vilyuchinsk, RussiaNovember 23, 2025

2025-11-23 21:10:18 UTC (2025-11-23) · approx. 8:10 AM UTC+11 local

MagnitudeM4.0(mb)
Time21:10 UTC8:10 AM UTC+11
Depth62.8 kmshallow crustal
Coordinates51.908°, 158.904°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 23, 2025 at 21:10 UTC, a magnitude 4.0 shallow crustal earthquake struck 118 km SSE of Vilyuchinsk, Russia, at a depth of 62.8 km and coordinates 51.9079°, 158.9040°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 51.91°, 158.90°

Earthquake Details

Magnitude
4.0 mb
Depth
62.8 km
shallow crustal
Location
51.9079°N
158.9040°E

Technical Information

Event ID
us6000ru5z
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
24
Azimuthal Gap
163.0°
Min Station Distance
1.128°
RMS Residual
0.48 sec
Last Updated
2026-02-20 16:07:38 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Vilyuchinsk, Russia?

The magnitude 4.0 earthquake that struck 118 km SSE of Vilyuchinsk, Russia on November 23, 2025 at 21:10 UTC had a depth of 62.8 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 4.0 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: us6000ru5z). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, November 23, 2025). M4.0 Earthquake 118 km SSE of Vilyuchinsk, RussiaNovember 23, 2025. Retrieved May 25, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ru5z/