M4.4 Earthquake 81 km E of Minami-Sōma, Japan — June 8, 2026
2026-06-08 22:26:23 UTC (2026-06-08) · approx. 7:26 AM UTC+9 local
On June 8, 2026 at 22:26 UTC, a magnitude 4.4 shallow crustal earthquake struck 81 km E of Minami-Sōma, Japan, at a depth of 56.7 km and coordinates 37.6755°, 141.8961°.
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
141.8961°E
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Common Questions
How strong was the magnitude 4.4 earthquake near Minami-Sōma, Japan?
The magnitude 4.4 earthquake that struck 81 km E of Minami-Sōma, Japan on June 8, 2026 at 22:26 UTC had a depth of 56.7 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: us7000srm3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, June 8, 2026). M4.4 Earthquake 81 km E of Minami-Sōma, Japan — June 8, 2026. Retrieved July 1, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000srm3/