M4.3 Earthquake 61 km NNW of Arthurs Point, New Zealand — September 10, 2026
2026-09-10 13:09:42 UTC (1 day ago) · approx. 12:09 AM UTC+11 local
On September 10, 2026 at 13:09 UTC, a magnitude 4.3 shallow crustal earthquake struck 61 km NNW of Arthurs Point, New Zealand, at a depth of 10.0 km and coordinates -44.4910°, 168.3049°.
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 5.2 mainshock that occurred 9 days ago 70 km NNW of Arthurs Point, New Zealand. Since the mainshock, the USGS has recorded 2 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
168.3049°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Arthurs Point, New Zealand?
The magnitude 4.3 earthquake that struck 61 km NNW of Arthurs Point, New Zealand on September 10, 2026 at 13:09 UTC had a depth of 10.0 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 M5.2 one earlier?
No. This magnitude 4.3 earthquake is an aftershock of the larger magnitude 5.2 mainshock that occurred earlier 70 km NNW of Arthurs Point, New Zealand. 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: us7000tgay). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 10, 2026). M4.3 Earthquake 61 km NNW of Arthurs Point, New Zealand — September 10, 2026. Retrieved September 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tgay/