M4.3 Earthquake 5 km WNW of Ōami, Japan — August 7, 2026
2026-08-07 07:40:47 UTC (5 days ago) · approx. 4:40 PM UTC+9 local
On August 7, 2026 at 07:40 UTC, a magnitude 4.3 shallow crustal earthquake struck 5 km WNW of Ōami, Japan, at a depth of 59.4 km and coordinates 35.5344°, 140.2645°.
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
140.2645°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Ōami, Japan?
The magnitude 4.3 earthquake that struck 5 km WNW of Ōami, Japan on August 7, 2026 at 07:40 UTC had a depth of 59.4 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: us6000tjz7). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 7, 2026). M4.3 Earthquake 5 km WNW of Ōami, Japan — August 7, 2026. Retrieved August 12, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tjz7/