M4.3 Earthquake 39 km ENE of Hachinohe, Japan — July 2, 2026
2026-07-02 22:05:24 UTC (2026-07-02) · approx. 7:05 AM UTC+9 local
On July 2, 2026 at 22:05 UTC, a magnitude 4.3 shallow crustal earthquake struck 39 km ENE of Hachinohe, Japan, at a depth of 63.1 km and coordinates 40.5968°, 141.9435°.
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.
This earthquake is part of an ongoing aftershock sequence following the magnitude 6.9 mainshock that occurred 29 days ago 33 km ENE of Noda, Japan. Since the mainshock, the USGS has recorded 10 aftershocks in this area. Aftershock activity is expected to continue for weeks to months as stresses on surrounding faults redistribute.
Earthquake Details
141.9435°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Hachinohe, Japan?
The magnitude 4.3 earthquake that struck 39 km ENE of Hachinohe, Japan on July 2, 2026 at 22:05 UTC had a depth of 63.1 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 4.3 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M6.9 one earlier?
No. This magnitude 4.3 earthquake is an aftershock of the larger magnitude 6.9 mainshock that occurred earlier 33 km ENE of Noda, Japan. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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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: us6000tazl). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 2, 2026). M4.3 Earthquake 39 km ENE of Hachinohe, Japan — July 2, 2026. Retrieved July 14, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tazl/