M4.4 Earthquake 151 km NW of Uken, Japan — August 19, 2026
2026-08-19 11:43:27 UTC (2 hours ago) · approx. 8:43 PM UTC+9 local
On August 19, 2026 at 11:43 UTC, a magnitude 4.4 intermediate depth earthquake struck 151 km NW of Uken, Japan, at a depth of 227.9 km and coordinates 29.0998°, 127.9755°.
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
127.9755°E
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Common Questions
How strong was the magnitude 4.4 earthquake near Uken, Japan?
The magnitude 4.4 earthquake that struck 151 km NW of Uken, Japan on August 19, 2026 at 11:43 UTC had a depth of 227.9 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: us6000tluu). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 19, 2026). M4.4 Earthquake 151 km NW of Uken, Japan — August 19, 2026. Retrieved August 19, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tluu/