M4.1 Earthquake in the Bonin Islands, Japan region — March 6, 2024
2024-03-06 21:20:37 UTC (2024-03-06) · approx. 6:20 AM UTC+9 local
On March 6, 2024 at 21:20 UTC, a magnitude 4.1 deep-focus earthquake struck in the Bonin Islands, Japan region, at a depth of 489.6 km and coordinates 27.6053°, 139.8158°.
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
139.8158°E
Technical Information
Common Questions
How strong was the magnitude 4.1 earthquake in the Bonin Islands, Japan region?
The magnitude 4.1 earthquake that struck in the Bonin Islands, Japan region on March 6, 2024 at 21:20 UTC had a depth of 489.6 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: us7000m3se). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, March 6, 2024). M4.1 Earthquake in the Bonin Islands, Japan region — March 6, 2024. Retrieved May 15, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m3se/