M4.0 Earthquake 9 km ENE of Nakatonbetsu, Japan — October 9, 2026
2026-10-09 09:49:26 UTC (2 hours ago) · approx. 6:49 PM UTC+9 local
On October 9, 2026 at 09:49 UTC, a magnitude 4.0 intermediate depth earthquake struck 9 km ENE of Nakatonbetsu, Japan, at a depth of 277.9 km and coordinates 45.0037°, 142.4121°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
142.4121°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Nakatonbetsu, Japan?
The magnitude 4.0 earthquake that struck 9 km ENE of Nakatonbetsu, Japan on October 9, 2026 at 09:49 UTC had a depth of 277.9 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 4.0 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000u14x). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, October 9, 2026). M4.0 Earthquake 9 km ENE of Nakatonbetsu, Japan — October 9, 2026. Retrieved October 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000u14x/