M4.1 Earthquake 250 km S of Ōyama, Japan — October 26, 2024
2024-10-26 16:52:14 UTC (2024-10-26) · approx. 1:52 AM UTC+9 local
On October 26, 2024 at 16:52 UTC, a magnitude 4.1 deep-focus earthquake struck 250 km S of Ōyama, Japan, at a depth of 312.4 km and coordinates 32.3418°, 138.2972°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
138.2972°E
Technical Information
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Common Questions
How strong was the magnitude 4.1 earthquake near Ōyama, Japan?
The magnitude 4.1 earthquake that struck 250 km S of Ōyama, Japan on October 26, 2024 at 16:52 UTC had a depth of 312.4 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 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000nrpy). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 26, 2024). M4.1 Earthquake 250 km S of Ōyama, Japan — October 26, 2024. Retrieved January 4, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000nrpy/