4.3

M4.3 Earthquake 119 km SSE of Vilyuchinsk, RussiaSeptember 22, 2025

2025-09-22 19:08:57 UTC (2025-09-22) · approx. 6:08 AM UTC+11 local

MagnitudeM4.3(mb)
Time19:08 UTC6:08 AM UTC+11
Depth76.6 kmintermediate depth
Coordinates51.952°, 159.127°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 22, 2025 at 19:08 UTC, a magnitude 4.3 intermediate depth earthquake struck 119 km SSE of Vilyuchinsk, Russia, at a depth of 76.6 km and coordinates 51.9521°, 159.1268°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 51.95°, 159.13°

Earthquake Details

Magnitude
4.3 mb
Depth
76.6 km
intermediate depth
Location
51.9521°N
159.1268°E

Technical Information

Event ID
us6000rhbw
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
33
Azimuthal Gap
137.0°
Min Station Distance
1.112°
RMS Residual
0.71 sec
Last Updated
2025-12-06 16:00:16 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Vilyuchinsk, Russia?

The magnitude 4.3 earthquake that struck 119 km SSE of Vilyuchinsk, Russia on September 22, 2025 at 19:08 UTC had a depth of 76.6 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 4.3 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: us6000rhbw). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, September 22, 2025). M4.3 Earthquake 119 km SSE of Vilyuchinsk, RussiaSeptember 22, 2025. Retrieved May 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rhbw/