M4.1 Earthquake 244 km SE of Kushimoto, Japan — March 7, 2025
2025-03-07 19:16:49 UTC (2025-03-07) · approx. 4:16 AM UTC+9 local
On March 7, 2025 at 19:16 UTC, a magnitude 4.1 deep-focus earthquake struck 244 km SE of Kushimoto, Japan, at a depth of 349.7 km and coordinates 32.2404°, 137.9432°.
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
137.9432°E
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Common Questions
How strong was the magnitude 4.1 earthquake near Kushimoto, Japan?
The magnitude 4.1 earthquake that struck 244 km SE of Kushimoto, Japan on March 7, 2025 at 19:16 UTC had a depth of 349.7 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: us6000pxhk). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 7, 2025). M4.1 Earthquake 244 km SE of Kushimoto, Japan — March 7, 2025. Retrieved May 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000pxhk/