M4.2 Earthquake 12 km W of Shimukappu, Japan — October 18, 2024
2024-10-18 22:56:21 UTC (2024-10-18) · approx. 7:56 AM UTC+9 local
On October 18, 2024 at 22:56 UTC, a magnitude 4.2 intermediate depth earthquake struck 12 km W of Shimukappu, Japan, at a depth of 118.9 km and coordinates 42.9920°, 142.2655°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
142.2655°E
Technical Information
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Common Questions
How strong was the magnitude 4.2 earthquake near Shimukappu, Japan?
The magnitude 4.2 earthquake that struck 12 km W of Shimukappu, Japan on October 18, 2024 at 22:56 UTC had a depth of 118.9 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000nznc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 18, 2024). M4.2 Earthquake 12 km W of Shimukappu, Japan — October 18, 2024. Retrieved December 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nznc/