M4.1 Earthquake 119 km ESE of Shikotan, Russia — July 18, 2023
2023-07-18 17:46:11 UTC (2023-07-18) · approx. 3:46 AM UTC+10 local
On July 18, 2023 at 17:46 UTC, a magnitude 4.1 shallow crustal earthquake struck 119 km ESE of Shikotan, Russia, at a depth of 40.5 km and coordinates 43.2915°, 148.0272°.
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.
Earthquake Details
148.0272°E
Technical Information
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Common Questions
How strong was the magnitude 4.1 earthquake near Shikotan, Russia?
The magnitude 4.1 earthquake that struck 119 km ESE of Shikotan, Russia on July 18, 2023 at 17:46 UTC had a depth of 40.5 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 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000kvpc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, July 18, 2023). M4.1 Earthquake 119 km ESE of Shikotan, Russia — July 18, 2023. Retrieved September 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kvpc/