4.4

M4.4 Earthquake 139 km ESE of Petropavlovsk-Kamchatsky, RussiaDecember 7, 2025

2025-12-07 22:58:16 UTC (2025-12-07) · approx. 9:58 AM UTC+11 local

MagnitudeM4.4(mb)
Time22:58 UTC9:58 AM UTC+11
Depth10.0 kmshallow crustal
Coordinates52.470°, 160.448°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 7, 2025 at 22:58 UTC, a magnitude 4.4 shallow crustal earthquake struck 139 km ESE of Petropavlovsk-Kamchatsky, Russia, at a depth of 10.0 km and coordinates 52.4699°, 160.4484°.

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.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.8 mainshock that occurred 22 days ago 156 km ESE of Petropavlovsk-Kamchatsky, Russia. Since the mainshock, the USGS has recorded 5 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at 52.47°, 160.45°

Earthquake Details

Magnitude
4.4 mb
Depth
10.0 km
shallow crustal
Location
52.4699°N
160.4484°E

Technical Information

Event ID
us7000rkdv
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
29
Azimuthal Gap
162.0°
Min Station Distance
1.226°
RMS Residual
0.91 sec
Last Updated
2026-03-04 18:44:47 UTC

Common Questions

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

The magnitude 4.4 earthquake that struck 139 km ESE of Petropavlovsk-Kamchatsky, Russia on December 7, 2025 at 22:58 UTC had a depth of 10.0 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.

Is this the same earthquake as the M5.8 one earlier?

No. This magnitude 4.4 earthquake is an aftershock of the larger magnitude 5.8 mainshock that occurred earlier 156 km ESE of Petropavlovsk-Kamchatsky, Russia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

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.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000rkdv). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, December 7, 2025). M4.4 Earthquake 139 km ESE of Petropavlovsk-Kamchatsky, RussiaDecember 7, 2025. Retrieved March 4, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000rkdv/