4.2

M4.2 Earthquake 140 km SE of Severo-Kuril’sk, RussiaJuly 20, 2026

2026-07-20 19:14:31 UTC (8 hours ago) · approx. 6:14 AM UTC+11 local

MagnitudeM4.2(mb)
Time19:14 UTC6:14 AM UTC+11
Depth10.0 kmshallow crustal
Coordinates49.968°, 157.756°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 20, 2026 at 19:14 UTC, a magnitude 4.2 shallow crustal earthquake struck 140 km SE of Severo-Kuril’sk, Russia, at a depth of 10.0 km and coordinates 49.9683°, 157.7557°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 49.97°, 157.76°

Earthquake Details

Magnitude
4.2 mb
Depth
10.0 km
shallow crustal
Location
49.9683°N
157.7557°E

Technical Information

Event ID
us7000t20g
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
31
Azimuthal Gap
132.0°
Min Station Distance
3.145°
RMS Residual
0.91 sec
Last Updated
2026-07-20 19:47:23 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Severo-Kuril’sk, Russia?

The magnitude 4.2 earthquake that struck 140 km SE of Severo-Kuril’sk, Russia on July 20, 2026 at 19:14 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 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000t20g). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 20, 2026). M4.2 Earthquake 140 km SE of Severo-Kuril’sk, RussiaJuly 20, 2026. Retrieved July 20, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000t20g/