4.1

M4.1 Earthquake in the Komandorskiye Ostrova, Russia region — September 7, 2020

2020-09-07 22:23:50 UTC (2020-09-07) · approx. 9:23 AM UTC+11 local

MagnitudeM4.1(mb)
Time22:23 UTC≈ 9:23 AM UTC+11
Depth18.8 kmshallow crustal
Coordinates54.186°, 169.094°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 7, 2020 at 22:23 UTC, a magnitude 4.1 shallow crustal earthquake struck in the Komandorskiye Ostrova, Russia region, at a depth of 18.8 km and coordinates 54.1858°, 169.0938°.

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 54.19°, 169.09°

Earthquake Details

Magnitude
4.1 mb
Depth
18.8 km
shallow crustal
Location
54.1858°N
169.0938°E

Technical Information

Event ID
us7000blt7
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Azimuthal Gap
150.0°
Min Station Distance
3.329°
RMS Residual
0.93 sec
Last Updated
2020-11-17 19:44:53 UTC

Common Questions

How strong was the magnitude 4.1 earthquake in the Komandorskiye Ostrova, Russia region?

The magnitude 4.1 earthquake that struck in the Komandorskiye Ostrova, Russia region on September 7, 2020 at 22:23 UTC had a depth of 18.8 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: us7000blt7). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, September 7, 2020). M4.1 Earthquake in the Komandorskiye Ostrova, Russia region — September 7, 2020. Retrieved November 17, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000blt7/