M4.1 Earthquake 5 km NNE of Ayabe, Japan — March 12, 2026
2026-03-12 17:41:23 UTC (2026-03-12) · approx. 2:41 AM UTC+9 local
On March 12, 2026 at 17:41 UTC, a magnitude 4.1 deep-focus earthquake struck 5 km NNE of Ayabe, Japan, at a depth of 369.1 km and coordinates 35.3475°, 135.2654°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
135.2654°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.1 earthquake near Ayabe, Japan?
The magnitude 4.1 earthquake that struck 5 km NNE of Ayabe, Japan on March 12, 2026 at 17:41 UTC had a depth of 369.1 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 4.1 earthquakes can continue for several days and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000sfve). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, March 12, 2026). M4.1 Earthquake 5 km NNE of Ayabe, Japan — March 12, 2026. Retrieved May 10, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000sfve/