M4.3 Earthquake 48 km ENE of Nishinoomote, Japan — August 10, 2026
2026-08-10 22:59:54 UTC (6 hours ago) · approx. 7:59 AM UTC+9 local
On August 10, 2026 at 22:59 UTC, a magnitude 4.3 shallow crustal earthquake struck 48 km ENE of Nishinoomote, Japan, at a depth of 35.0 km and coordinates 30.9744°, 131.4240°.
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.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.1 mainshock that occurred 25 days ago 48 km E of Nishinoomote, 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
131.4240°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Nishinoomote, Japan?
The magnitude 4.3 earthquake that struck 48 km ENE of Nishinoomote, Japan on August 10, 2026 at 22:59 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 4.3 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 4.3 earthquake is an aftershock of the larger magnitude 5.1 mainshock that occurred earlier 48 km E of Nishinoomote, Japan. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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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: us6000tjtz). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 10, 2026). M4.3 Earthquake 48 km ENE of Nishinoomote, Japan — August 10, 2026. Retrieved August 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tjtz/