M4.4 Earthquake 65 km ESE of Isen, Japan — September 13, 2026
2026-09-13 07:14:45 UTC (2026-09-13) · approx. 4:14 PM UTC+9 local
On September 13, 2026 at 07:14 UTC, a magnitude 4.4 shallow crustal earthquake struck 65 km ESE of Isen, Japan, at a depth of 10.0 km and coordinates 27.3582°, 129.4940°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
129.4940°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake near Isen, Japan?
The magnitude 4.4 earthquake that struck 65 km ESE of Isen, Japan on September 13, 2026 at 07:14 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000ti9r). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 13, 2026). M4.4 Earthquake 65 km ESE of Isen, Japan — September 13, 2026. Retrieved September 24, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000ti9r/