M4.3 Earthquake 16 km E of Ichinohe, Japan — April 8, 2024
2024-04-08 21:13:03 UTC (2024-04-08) · approx. 6:13 AM UTC+9 local
On April 8, 2024 at 21:13 UTC, a magnitude 4.3 intermediate depth earthquake struck 16 km E of Ichinohe, Japan, at a depth of 83.0 km and coordinates 40.2142°, 141.4875°.
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
141.4875°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Ichinohe, Japan?
The magnitude 4.3 earthquake that struck 16 km E of Ichinohe, Japan on April 8, 2024 at 21:13 UTC had a depth of 83.0 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: us7000mavc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, April 8, 2024). M4.3 Earthquake 16 km E of Ichinohe, Japan — April 8, 2024. Retrieved June 17, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000mavc/