M4.3 Earthquake 10 km SW of Tomakomai, Japan — August 24, 2026
2026-08-24 22:05:02 UTC (6 days ago) · approx. 7:05 AM UTC+9 local
On August 24, 2026 at 22:05 UTC, a magnitude 4.3 intermediate depth earthquake struck 10 km SW of Tomakomai, Japan, at a depth of 132.0 km and coordinates 42.5717°, 141.5140°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
141.5140°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Tomakomai, Japan?
The magnitude 4.3 earthquake that struck 10 km SW of Tomakomai, Japan on August 24, 2026 at 22:05 UTC had a depth of 132.0 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000tcmq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 24, 2026). M4.3 Earthquake 10 km SW of Tomakomai, Japan — August 24, 2026. Retrieved August 30, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tcmq/