M4.4 Earthquake 51 km SE of Motomachi, Japan — October 11, 2022
2022-10-11 18:57:36 UTC (2022-10-11) · approx. 4:57 AM UTC+10 local
On October 11, 2022 at 18:57 UTC, a magnitude 4.4 intermediate depth earthquake struck 51 km SE of Motomachi, Japan, at a depth of 135.0 km and coordinates 43.4541°, 144.4747°.
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
144.4747°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake near Motomachi, Japan?
The magnitude 4.4 earthquake that struck 51 km SE of Motomachi, Japan on October 11, 2022 at 18:57 UTC had a depth of 135.0 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 4.4 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: us6000issy). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 11, 2022). M4.4 Earthquake 51 km SE of Motomachi, Japan — October 11, 2022. Retrieved December 17, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000issy/