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M5.1 earthquake 78 km ENE of Tadine, Loyalty Islands, New Caledonia

A magnitude 5.1 earthquake struck 78 km ENE of Tadine, Loyalty Islands, New Caledonia at 09:07 local time (22:07 UTC) on 26 Sept 2026, at a depth of 10 km, according to USGS and GFZ.

Reported by 2 agencies · revised from M5.2

Data: USGS, GFZ · updated 2026-09-25 22:27 UTC · reviewed

Magnitude
5.1moderate
body-wave magnitude (mb)
revised from 5.2
Depth
10 km
Status
Reviewed
Origin time
2026-09-25 22:07:34 UTC
Local: 26 Sept 2026, 09:07:34 (Pacific/Noumea)
Epicentre
21.273° S, 168.574° E

Circles show this event and others within 45 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
TadineLoyalty Islands, New Caledonia · pop. 7,49278 kmIIIWeak
WéLoyalty Islands, New Caledonia · pop. 10,375142 kmIIWeak

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more. Likely felt out to about 142 km.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses USGS, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
GFZGFZ via GEOFON, GFZ Helmholtz Centre for Geosciences5.2 mb10 km21.07° S, 168.75° E−0.3 sAutomatic
USGSheadlineUSGS NEIC via U.S. Geological Survey5.1 mb10 km21.27° S, 168.57° E–Reviewed

How big was it?

Felt by most people over a wide area. Can damage poorly built structures close to the epicentre.

It released roughly the energy of 674 t of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 10 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M5.1 releases about 32× the energy of M4.1, and its waves are about 10× taller on a seismogram. Energy: 674 t of TNT vs 21 t of TNT.

Each square is the energy of one M4.1. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

32 later earthquakes within 45 km; the largest was M5.5 2 days ago. 1 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M5.1

32 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.855.110
1.424.910
1.545.510
1.755.410
3.055.310
3.164.710
7.725.110
9.015.110
9.245.010
10.295.010
10.774.710
11.004.710
11.014.810
11.054.810
12.234.910
14.064.710
14.115.010
14.125.210
15.694.814
16.905.110
17.994.810
20.304.810
27.185.010
28.245.110
35.995.010
50.674.810
53.145.110
53.295.310
55.345.110
55.584.610
55.584.910
55.635.210
  1. 5.562 km ENE of Tadine, Loyalty Islands, New Caledonia09-25 23:39
  2. 5.469 km NE of Tadine, Loyalty Islands, New Caledonia09-25 23:52
  3. 5.359 km ENE of Tadine, Loyalty Islands, New Caledonia09-26 01:10
  4. 5.361 km NE of Tadine, Loyalty Islands, New Caledonia09-28 03:25
  5. 5.259 km NE of Tadine, Loyalty Islands, New Caledonia09-26 12:14
  6. 5.267 km ENE of Tadine, Loyalty Islands, New Caledonia09-28 05:45
  7. 5.193 km NE of Tadine, Loyalty Islands, New Caledonia09-28 03:15
  8. 5.165 km ENE of Tadine, Loyalty Islands, New Caledonia09-26 05:50
  9. 5.169 km NE of Tadine, Loyalty Islands, New Caledonia09-26 07:08
  10. 5.174 km ENE of Tadine, Loyalty Islands, New Caledonia09-26 15:01
  11. 5.191 km ENE of Tadine, Loyalty Islands, New Caledonia09-27 02:22
  12. 5.179 km ENE of Tadine, Loyalty Islands, New Caledonia09-28 05:28
  13. 5.173 km ENE of Tadine, Loyalty Islands, New Caledonia09-25 22:58
  14. 5.085 km ENE of Tadine, Loyalty Islands, New Caledonia09-27 10:06
  15. 5.084 km ENE of Tadine, Loyalty Islands, New Caledonia09-26 07:22
  16. 5.079 km ENE of Tadine, Loyalty Islands, New Caledonia09-26 08:24
  17. 5.077 km NE of Tadine, Loyalty Islands, New Caledonia09-26 12:14
  18. 5.061 km ENE of Tadine, Loyalty Islands, New Caledonia09-27 01:18
  19. 4.979 km NE of Tadine, Loyalty Islands, New Caledonia09-25 23:32
  20. 4.974 km ENE of Tadine, Loyalty Islands, New Caledonia09-26 10:21
  21. 4.940 km ENE of Tadine, Loyalty Islands, New Caledonia09-28 05:42
  22. 4.898 km NE of Tadine, Loyalty Islands, New Caledonia09-26 09:08
  23. 4.879 km ENE of Tadine, Loyalty Islands, New Caledonia09-26 09:10
  24. 4.887 km NE of Tadine, Loyalty Islands, New Caledonia09-26 13:48
  25. 4.873 km E of Tadine, Loyalty Islands, New Caledonia09-26 16:06

Did you feel it?

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Reports on SeismoAtlas

No reports yet.

Event id gfz2026svnc. First recorded here 28 Sept 2026, 17:32:06 UTC. Solutions: GFZ (geofon:gfz2026svnc); USGS (usgs:us6000txq2). Cite as: SeismoAtlas, “M5.1 earthquake 78 km ENE of Tadine, Loyalty Islands, New Caledonia”, https://seismoatlas.com/earthquake/gfz2026svnc-m5-1-earthquake-78-km-ene-of-tadine-loyalty-islands-new-caledonia, data from USGS, GFZ.

JSON: /api/v1/events/gfz2026svnc. SeismoAtlas is not an official warning service.