M4.7 Earthquake east of the Kuril Islands — December 27, 2022
2022-12-27 17:33:46 UTC (2022-12-27) · approx. 3:33 AM UTC+10 local
On December 27, 2022 at 17:33 UTC, a magnitude 4.7 shallow crustal earthquake struck east of the Kuril Islands, at a depth of 69.4 km and coordinates 43.9419°, 148.0449°. This earthquake was detected by 177 seismic stations with good location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
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
148.0449°E
Technical Information
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Common Questions
How strong was the magnitude 4.7 earthquake east of the Kuril Islands?
The magnitude 4.7 earthquake that struck east of the Kuril Islands on December 27, 2022 at 17:33 UTC had a depth of 69.4 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 43.9419°, 148.0449°, which is east of the Kuril Islands.
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: us7000j0en). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 27, 2022). M4.7 Earthquake east of the Kuril Islands — December 27, 2022. Retrieved March 7, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j0en/