M5.3 Earthquake east of the Kuril Islands — July 2, 2021
2021-07-02 17:38:21 UTC (2021-07-02) · approx. 3:38 AM UTC+10 local
On July 2, 2021 at 17:38 UTC, a magnitude 5.3 shallow crustal earthquake struck east of the Kuril Islands, at a depth of 10.0 km and coordinates 46.4348°, 154.3484°.
Physical scale: An earthquake of magnitude 5.3 releases seismic energy equivalent to roughly 1 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.7 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
154.3484°E
Technical Information
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Common Questions
How strong was the magnitude 5.3 earthquake east of the Kuril Islands?
The magnitude 5.3 earthquake that struck east of the Kuril Islands on July 2, 2021 at 17:38 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 46.4348°, 154.3484°, which is east of the Kuril Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.3 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000eiba). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, July 2, 2021). M5.3 Earthquake east of the Kuril Islands — July 2, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000eiba/