4.3

M4.3 Earthquake 163 km SE of Petropavlovsk-Kamchatsky, RussiaJune 25, 2026

2026-06-25 18:39:06 UTC (2026-06-25) · approx. 5:39 AM UTC+11 local

MagnitudeM4.3(mb)
Time18:39 UTC5:39 AM UTC+11
Depth28.9 kmshallow crustal
Coordinates52.214°, 160.593°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 25, 2026 at 18:39 UTC, a magnitude 4.3 shallow crustal earthquake struck 163 km SE of Petropavlovsk-Kamchatsky, Russia, at a depth of 28.9 km and coordinates 52.2140°, 160.5931°.

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 52.21°, 160.59°

Earthquake Details

Magnitude
4.3 mb
Depth
28.9 km
shallow crustal
Location
52.2140°N
160.5931°E

Technical Information

Event ID
us6000t88t
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
34
Azimuthal Gap
119.0°
Min Station Distance
1.977°
RMS Residual
0.83 sec
Last Updated
2026-07-07 17:02:40 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Petropavlovsk-Kamchatsky, Russia?

The magnitude 4.3 earthquake that struck 163 km SE of Petropavlovsk-Kamchatsky, Russia on June 25, 2026 at 18:39 UTC had a depth of 28.9 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 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000t88t). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 25, 2026). M4.3 Earthquake 163 km SE of Petropavlovsk-Kamchatsky, RussiaJune 25, 2026. Retrieved July 7, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000t88t/