M4.3 Earthquake 21 km SW of Anamizu, Japan — March 12, 2024
2024-03-12 18:31:58 UTC (2024-03-12) · approx. 3:31 AM UTC+9 local
On March 12, 2024 at 18:31 UTC, a magnitude 4.3 shallow crustal earthquake struck 21 km SW of Anamizu, Japan, at a depth of 8.8 km and coordinates 37.1017°, 136.7269°.
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
136.7269°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Anamizu, Japan?
The magnitude 4.3 earthquake that struck 21 km SW of Anamizu, Japan on March 12, 2024 at 18:31 UTC had a depth of 8.8 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: us6000mjm2). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, March 12, 2024). M4.3 Earthquake 21 km SW of Anamizu, Japan — March 12, 2024. Retrieved May 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mjm2/