M4.2 Earthquake 69 km SSE of Kushiro, Japan — August 8, 2026
2026-08-08 01:32:33 UTC (3 hours ago) · approx. 11:32 AM UTC+10 local
On August 8, 2026 at 01:32 UTC, a magnitude 4.2 shallow crustal earthquake struck 69 km SSE of Kushiro, Japan, at a depth of 35.0 km and coordinates 42.3596°, 144.5582°.
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
144.5582°E
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Common Questions
How strong was the magnitude 4.2 earthquake near Kushiro, Japan?
The magnitude 4.2 earthquake that struck 69 km SSE of Kushiro, Japan on August 8, 2026 at 01:32 UTC had a depth of 35.0 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: us6000tj5u). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 8, 2026). M4.2 Earthquake 69 km SSE of Kushiro, Japan — August 8, 2026. Retrieved August 8, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tj5u/