4.2

M4.2 Earthquake 162 km E of Petropavlovsk-Kamchatsky, RussiaSeptember 19, 2025

2025-09-19 20:11:13 UTC (2025-09-19) · approx. 7:11 AM UTC+11 local

MagnitudeM4.2(mb)
Time20:11 UTC7:11 AM UTC+11
Depth37.9 kmshallow crustal
Coordinates53.120°, 161.052°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 19, 2025 at 20:11 UTC, a magnitude 4.2 shallow crustal earthquake struck 162 km E of Petropavlovsk-Kamchatsky, Russia, at a depth of 37.9 km and coordinates 53.1200°, 161.0523°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 53.12°, 161.05°

Earthquake Details

Magnitude
4.2 mb
Depth
37.9 km
shallow crustal
Location
53.1200°N
161.0523°E

Technical Information

Event ID
us6000rgdq
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
49
Azimuthal Gap
138.0°
Min Station Distance
1.453°
RMS Residual
0.85 sec
Last Updated
2025-12-06 16:00:14 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Petropavlovsk-Kamchatsky, Russia?

The magnitude 4.2 earthquake that struck 162 km E of Petropavlovsk-Kamchatsky, Russia on September 19, 2025 at 20:11 UTC had a depth of 37.9 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 4.2 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: us6000rgdq). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, September 19, 2025). M4.2 Earthquake 162 km E of Petropavlovsk-Kamchatsky, RussiaSeptember 19, 2025. Retrieved May 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rgdq/