M4.7 Earthquake north of Severnaya Zemlya — October 1, 2021
2021-10-01 23:56:38 UTC (2021-10-01) · approx. 6:56 AM UTC+7 local
On October 1, 2021 at 23:56 UTC, a magnitude 4.7 shallow crustal earthquake struck north of Severnaya Zemlya, at a depth of 10.0 km and coordinates 84.6559°, 102.7097°.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
102.7097°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake north of Severnaya Zemlya?
The magnitude 4.7 earthquake that struck north of Severnaya Zemlya on October 1, 2021 at 23:56 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 84.6559°, 102.7097°, which is north of Severnaya Zemlya.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000fqyq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, October 1, 2021). M4.7 Earthquake north of Severnaya Zemlya — October 1, 2021. Retrieved December 10, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000fqyq/