4.3

M4.3 Earthquake 168 km WNW of Tiksi, Russia — September 29, 2026

2026-09-29 23:20:37 UTC (2026-09-29) · approx. 7:20 AM UTC+8 local

MagnitudeM4.3(mb)
Time23:20 UTC≈ 7:20 AM UTC+8
Depth10.0 kmshallow crustal
Coordinates72.564°, 124.860°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 29, 2026 at 23:20 UTC, a magnitude 4.3 shallow crustal earthquake struck 168 km WNW of Tiksi, Russia, at a depth of 10.0 km and coordinates 72.5635°, 124.8598°.

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 72.56°, 124.86°

Earthquake Details

Magnitude
4.3 mb
Depth
10.0 km
shallow crustal
Location
72.5635°N
124.8598°E

Technical Information

Event ID
us6000u0j8
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
28
Azimuthal Gap
97.0°
Min Station Distance
1.551°
RMS Residual
0.33 sec
Last Updated
2026-10-08 02:52:50 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Tiksi, Russia?

The magnitude 4.3 earthquake that struck 168 km WNW of Tiksi, Russia on September 29, 2026 at 23:20 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 4.3 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: us6000u0j8). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, September 29, 2026). M4.3 Earthquake 168 km WNW of Tiksi, Russia — September 29, 2026. Retrieved October 8, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000u0j8/