M4.8 Earthquake east of the Kuril Islands — December 23, 2020
2020-12-23 04:02:22 UTC (2020-12-23) · approx. 2:02 PM UTC+10 local
On December 23, 2020 at 04:02 UTC, a magnitude 4.8 shallow crustal earthquake struck east of the Kuril Islands, at a depth of 10.0 km and coordinates 45.9715°, 154.7112°.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
154.7112°E
Technical Information
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Common Questions
How strong was the magnitude 4.8 earthquake east of the Kuril Islands?
The magnitude 4.8 earthquake that struck east of the Kuril Islands on December 23, 2020 at 04:02 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 45.9715°, 154.7112°, which is east of the Kuril Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000d235). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 23, 2020). M4.8 Earthquake east of the Kuril Islands — December 23, 2020. Retrieved March 6, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000d235/