M4.4 Earthquake 84 km NNE of Shikotan, Russia — October 21, 2022
2022-10-21 19:38:34 UTC (2022-10-21) · approx. 5:38 AM UTC+10 local
On October 21, 2022 at 19:38 UTC, a magnitude 4.4 intermediate depth earthquake struck 84 km NNE of Shikotan, Russia, at a depth of 136.5 km and coordinates 44.5283°, 147.0397°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
147.0397°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Shikotan, Russia?
The magnitude 4.4 earthquake that struck 84 km NNE of Shikotan, Russia on October 21, 2022 at 19:38 UTC had a depth of 136.5 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000ivlp). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 21, 2022). M4.4 Earthquake 84 km NNE of Shikotan, Russia — October 21, 2022. Retrieved December 31, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000ivlp/