M4.3 Earthquake 57 km WNW of Ie, Japan — April 29, 2025
2025-04-29 21:15:37 UTC (2025-04-29) · approx. 5:15 AM UTC+8 local
On April 29, 2025 at 21:15 UTC, a magnitude 4.3 intermediate depth earthquake struck 57 km WNW of Ie, Japan, at a depth of 100.7 km and coordinates 26.9264°, 127.2885°.
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
127.2885°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Ie, Japan?
The magnitude 4.3 earthquake that struck 57 km WNW of Ie, Japan on April 29, 2025 at 21:15 UTC had a depth of 100.7 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: us7000pzdw). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, April 29, 2025). M4.3 Earthquake 57 km WNW of Ie, Japan — April 29, 2025. Retrieved July 11, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pzdw/