4.1

M4.1 Earthquake in the Kermadec Islands region — September 27, 2026

2026-09-27 19:33:32 UTC (48 min ago) · approx. 7:33 AM UTC-12 local

MagnitudeM4.1(mb)
Time19:33 UTC≈ 7:33 AM UTC-12
Depth354.4 kmdeep-focus
Coordinates-31.417°, -179.876°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 27, 2026 at 19:33 UTC, a magnitude 4.1 deep-focus earthquake struck in the Kermadec Islands region, at a depth of 354.4 km and coordinates -31.4171°, -179.8762°.

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.

Map showing earthquake epicenter at -31.42°, -179.88°

Earthquake Details

Magnitude
4.1 mb
Depth
354.4 km
deep-focus
Location
-31.4171°N
-179.8762°E

Technical Information

Event ID
us6000ty06
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
22
Azimuthal Gap
141.0°
Min Station Distance
2.742°
RMS Residual
0.83 sec
Last Updated
2026-09-27 19:50:39 UTC

Common Questions

How strong was the magnitude 4.1 earthquake in the Kermadec Islands region?

The magnitude 4.1 earthquake that struck in the Kermadec Islands region on September 27, 2026 at 19:33 UTC had a depth of 354.4 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.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000ty06). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, September 27, 2026). M4.1 Earthquake in the Kermadec Islands region — September 27, 2026. Retrieved September 27, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ty06/