4.4

M4.4 Earthquake 128 km ENE of Petropavlovsk-Kamchatsky, RussiaSeptember 15, 2025

2025-09-15 16:09:52 UTC (2025-09-15) · approx. 3:09 AM UTC+11 local

MagnitudeM4.4(mb)
Time16:09 UTC3:09 AM UTC+11
Depth55.5 kmshallow crustal
Coordinates53.402°, 160.474°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 15, 2025 at 16:09 UTC, a magnitude 4.4 shallow crustal earthquake struck 128 km ENE of Petropavlovsk-Kamchatsky, Russia, at a depth of 55.5 km and coordinates 53.4016°, 160.4736°.

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 53.40°, 160.47°

Earthquake Details

Magnitude
4.4 mb
Depth
55.5 km
shallow crustal
Location
53.4016°N
160.4736°E

Technical Information

Event ID
us7000qwcf
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
53
Azimuthal Gap
112.0°
Min Station Distance
1.160°
RMS Residual
0.50 sec
Last Updated
2025-12-03 03:58:39 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Petropavlovsk-Kamchatsky, Russia?

The magnitude 4.4 earthquake that struck 128 km ENE of Petropavlovsk-Kamchatsky, Russia on September 15, 2025 at 16:09 UTC had a depth of 55.5 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: us7000qwcf). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, September 15, 2025). M4.4 Earthquake 128 km ENE of Petropavlovsk-Kamchatsky, RussiaSeptember 15, 2025. Retrieved May 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000qwcf/