6.6

M6.6 Earthquake 80 km ENE of Tadine, New Caledonia — September 25, 2026

2026-09-25 21:23:03 UTC (1 hour ago) · approx. 8:23 AM UTC+11 local

Felt by 8 people across nearby locations. Maximum shaking intensity MMI 5.7 (strong).

MagnitudeM6.6(mww)
Time21:23 UTC≈ 8:23 AM UTC+11
Depth10.0 kmshallow crustal
Coordinates-21.298°, 168.610°
Felt by8DYFI responses· max MMI 5.7
Status✓ Reviewed by USGS

On September 25, 2026 at 21:23 UTC, a magnitude 6.6 shallow crustal earthquake struck 80 km ENE of Tadine, New Caledonia, at a depth of 10.0 km and coordinates -21.2982°, 168.6100°. The earthquake was reported felt by 8 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 5.7 (strong). This earthquake was detected by 102 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 672, making it a moderate-impact event.

Physical scale: An earthquake of magnitude 6.6 releases seismic energy equivalent to roughly 120 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 22 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -21.30°, 168.61°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M6.6 earthquake near 80 km ENE of Tadine, New Caledonia

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 8 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M6.6 earthquake near 80 km ENE of Tadine, New Caledonia

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
6.6 mww
Depth
10.0 km
shallow crustal
Location
-21.2982°N
168.6100°E
Felt Reports
8
DYFI responses
Intensity (MMI)
5.7
strong
Community Intensity
2.8
CDI from reports

Technical Information

Event ID
us6000txpi
Event Type
earthquake
Status
✓ Reviewed
Significance
672
Stations Used
102
Azimuthal Gap
35.0°
Min Station Distance
1.696°
RMS Residual
0.82 sec
Last Updated
2026-09-25 22:11:10 UTC

Common Questions

How strong was the magnitude 6.6 earthquake near Tadine, New Caledonia?

The magnitude 6.6 earthquake that struck 80 km ENE of Tadine, New Caledonia on September 25, 2026 at 21:23 UTC had a depth of 10.0 km. It was felt by 8 people with maximum shaking intensity of MMI 5.7 (strong). For context, this was a strong earthquake capable of causing significant damage.

Where did the earthquake occur?

The earthquake epicenter was located at -21.2982°, 168.6100°, which is 80 km ENE of Tadine, New Caledonia.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 6.6 earthquakes can continue for weeks to months and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000txpi). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, September 25, 2026). M6.6 Earthquake 80 km ENE of Tadine, New Caledonia — September 25, 2026. Retrieved September 25, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000txpi/