M4.3 Earthquake 5 km ENE of Ōhara, Japan — February 28, 2024
2024-02-28 23:42:49 UTC (2024-02-28) · approx. 8:42 AM UTC+9 local
On February 28, 2024 at 23:42 UTC, a magnitude 4.3 shallow crustal earthquake struck 5 km ENE of Ōhara, Japan, at a depth of 46.2 km and coordinates 35.2697°, 140.4478°.
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
140.4478°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Ōhara, Japan?
The magnitude 4.3 earthquake that struck 5 km ENE of Ōhara, Japan on February 28, 2024 at 23:42 UTC had a depth of 46.2 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: us6000mgq4). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, February 28, 2024). M4.3 Earthquake 5 km ENE of Ōhara, Japan — February 28, 2024. Retrieved May 10, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mgq4/