M4.1 Earthquake 34 km WNW of Acacia Bay, New Zealand — October 2, 2025
2025-10-02 18:15:45 UTC (2025-10-02) · approx. 6:15 AM UTC+12 local
On October 2, 2025 at 18:15 UTC, a magnitude 4.1 intermediate depth earthquake struck 34 km WNW of Acacia Bay, New Zealand, at a depth of 151.9 km and coordinates -38.5674°, 175.6741°.
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
175.6741°E
Technical Information
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Common Questions
How strong was the magnitude 4.1 earthquake near Acacia Bay, New Zealand?
The magnitude 4.1 earthquake that struck 34 km WNW of Acacia Bay, New Zealand on October 2, 2025 at 18:15 UTC had a depth of 151.9 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 4.1 earthquakes can continue for several days and gradually diminish over time.
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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: us6000re8w). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, October 2, 2025). M4.1 Earthquake 34 km WNW of Acacia Bay, New Zealand — October 2, 2025. Retrieved December 19, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000re8w/