M4.3 Earthquake 70 km S of Koshima, Japan — November 2, 2024
2024-11-02 20:46:45 UTC (2024-11-02) · approx. 5:46 AM UTC+9 local
On November 2, 2024 at 20:46 UTC, a magnitude 4.3 shallow crustal earthquake struck 70 km S of Koshima, Japan, at a depth of 35.0 km and coordinates 29.5958°, 130.5170°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
130.5170°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Koshima, Japan?
The magnitude 4.3 earthquake that struck 70 km S of Koshima, Japan on November 2, 2024 at 20:46 UTC had a depth of 35.0 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000npl9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, November 2, 2024). M4.3 Earthquake 70 km S of Koshima, Japan — November 2, 2024. Retrieved January 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000npl9/