M4.2 Earthquake east of the Kuril Islands — August 15, 2025
2025-08-15 22:45:31 UTC (2025-08-15) · approx. 8:45 AM UTC+10 local
On August 15, 2025 at 22:45 UTC, a magnitude 4.2 shallow crustal earthquake struck east of the Kuril Islands, at a depth of 10.0 km and coordinates 45.7601°, 153.9428°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
153.9428°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake east of the Kuril Islands?
The magnitude 4.2 earthquake that struck east of the Kuril Islands on August 15, 2025 at 22:45 UTC had a depth of 10.0 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000qv2t). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, August 15, 2025). M4.2 Earthquake east of the Kuril Islands — August 15, 2025. Retrieved November 4, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qv2t/