4.1

M4.1 Earthquake 100 km SE of Ozernovskiy, RussiaAugust 10, 2025

2025-08-10 19:04:58 UTC (2025-08-10) · approx. 6:04 AM UTC+11 local

MagnitudeM4.1(mb)
Time19:04 UTC6:04 AM UTC+11
Depth59.0 kmshallow crustal
Coordinates50.883°, 157.550°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 10, 2025 at 19:04 UTC, a magnitude 4.1 shallow crustal earthquake struck 100 km SE of Ozernovskiy, Russia, at a depth of 59.0 km and coordinates 50.8830°, 157.5496°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 50.88°, 157.55°

Earthquake Details

Magnitude
4.1 mb
Depth
59.0 km
shallow crustal
Location
50.8830°N
157.5496°E

Technical Information

Event ID
us7000qtuh
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
29
Azimuthal Gap
144.0°
Min Station Distance
2.231°
RMS Residual
1.23 sec
Last Updated
2025-10-25 13:40:38 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Ozernovskiy, Russia?

The magnitude 4.1 earthquake that struck 100 km SE of Ozernovskiy, Russia on August 10, 2025 at 19:04 UTC had a depth of 59.0 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 4.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000qtuh). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, August 10, 2025). M4.1 Earthquake 100 km SE of Ozernovskiy, RussiaAugust 10, 2025. Retrieved October 25, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qtuh/