M4.3 Earthquake 7 km NNE of Fujioka, Japan — May 12, 2026
2026-05-12 00:02:38 UTC (2 hours ago) · approx. 9:02 AM UTC+9 local
On May 12, 2026 at 00:02 UTC, a magnitude 4.3 shallow crustal earthquake struck 7 km NNE of Fujioka, Japan, at a depth of 68.9 km and coordinates 36.3120°, 139.6875°.
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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 3 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
139.6875°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Fujioka, Japan?
The magnitude 4.3 earthquake that struck 7 km NNE of Fujioka, Japan on May 12, 2026 at 00:02 UTC had a depth of 68.9 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.
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 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000sx29). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 12, 2026). M4.3 Earthquake 7 km NNE of Fujioka, Japan — May 12, 2026. Retrieved May 12, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000sx29/