4.4

M4.4 Earthquake 2 km S of Tauranga, New ZealandOctober 21, 2025

2025-10-21 16:42:10 UTC (2025-10-21) · approx. 4:42 AM UTC+12 local

MagnitudeM4.4(mb)
Time16:42 UTC4:42 AM UTC+12
Depth286.6 kmintermediate depth
Coordinates-37.710°, 176.168°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 21, 2025 at 16:42 UTC, a magnitude 4.4 intermediate depth earthquake struck 2 km S of Tauranga, New Zealand, at a depth of 286.6 km and coordinates -37.7097°, 176.1683°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -37.71°, 176.17°

Earthquake Details

Magnitude
4.4 mb
Depth
286.6 km
intermediate depth
Location
-37.7097°N
176.1683°E

Technical Information

Event ID
us6000rii0
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
73
Azimuthal Gap
48.0°
Min Station Distance
0.529°
RMS Residual
1.03 sec
Last Updated
2026-01-09 15:38:43 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Tauranga, New Zealand?

The magnitude 4.4 earthquake that struck 2 km S of Tauranga, New Zealand on October 21, 2025 at 16:42 UTC had a depth of 286.6 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 4.4 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.

Authoritative source: USGS event page (event ID: us6000rii0). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, October 21, 2025). M4.4 Earthquake 2 km S of Tauranga, New ZealandOctober 21, 2025. Retrieved May 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rii0/