M4.4 Earthquake 24 km ESE of Ōfunato, Japan — January 6, 2026
2026-01-06 18:56:42 UTC (2026-01-06) · approx. 3:56 AM UTC+9 local
On January 6, 2026 at 18:56 UTC, a magnitude 4.4 shallow crustal earthquake struck 24 km ESE of Ōfunato, Japan, at a depth of 65.1 km and coordinates 38.9612°, 141.9654°.
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.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.1 mainshock that occurred 8 days ago 60 km SE of Ōfunato, Japan. Since the mainshock, the USGS has recorded 1 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
141.9654°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Ōfunato, Japan?
The magnitude 4.4 earthquake that struck 24 km ESE of Ōfunato, Japan on January 6, 2026 at 18:56 UTC had a depth of 65.1 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.
Is this the same earthquake as the M5.1 one earlier?
No. This magnitude 4.4 earthquake is an aftershock of the larger magnitude 5.1 mainshock that occurred earlier 60 km SE of Ōfunato, Japan. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks.
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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: us6000s4jn). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, January 6, 2026). M4.4 Earthquake 24 km ESE of Ōfunato, Japan — January 6, 2026. Retrieved April 7, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000s4jn/