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SeismoAtlas

M4.8 earthquake – Vanuatu Islands

A magnitude 4.8 earthquake struck in the Vanuatu Islands region at 15:53 local time (04:53 UTC) on 26 Oct 2026, at a depth of 10 km, according to USGS and GFZ.

Reported by 2 agencies · revised from M5.0

Data: USGS, GFZ · updated 2026-10-26 05:16 UTC · reviewed

Magnitude
4.8light
moment magnitude (W phase) (mww)
revised from 5.0
Depth
10 km
Status
Reviewed
Origin time
2026-10-26 04:53:35 UTC
Local: 26 Oct 2026, 15:53:35 (Pacific/Efate)
Epicentre
14.069° S, 165.699° E

Circles show this event and others within 32 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
No towns within 400 km. This is a remote area.

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 102 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 Geosciences4.9 mbwas 5.010 km14.07° S, 165.77° E+1.4 sAutomatic · 1 revision
USGSheadlineUSGS NEIC via U.S. Geological Survey4.8 mww10 km14.07° S, 165.70° E–Reviewed

How big was it?

Widely felt near the epicentre: rattling windows and objects. Significant damage is unlikely.

It released roughly the energy of 239 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.

M4.8 releases about 32× the energy of M3.8, and its waves are about 10× taller on a seismogram. Energy: 239 t of TNT vs 7.6 t of TNT.

Each square is the energy of one M3.8. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

22 later earthquakes within 32 km; the largest was M6.0 15 days ago. 110 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M4.8

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
7.335.210
9.174.610
10.254.610
28.035.811
28.465.010
29.225.010
29.955.210
45.476.010
46.105.610
126.635.010
127.044.310
137.825.210
139.074.810
145.555.410
146.125.110
146.524.410
146.744.710
149.684.910
150.896.010
151.054.810
151.254.810
375.014.912
  1. 6.0Vanuatu Islands10-28 02:21
  2. 6.0Vanuatu Islands11-01 11:47
  3. 5.8Vanuatu Islands10-27 08:55
  4. 5.6Vanuatu Islands10-28 02:59
  5. 5.4Vanuatu Islands11-01 06:26
  6. 5.2Vanuatu Islands10-26 12:13
  7. 5.2Vanuatu Islands10-27 10:50
  8. 5.2Vanuatu Islands10-31 22:42
  9. 5.1Vanuatu Islands11-01 07:00
  10. 5.0Port-Olry, Vanuatu10-27 09:20
  11. 5.0Port-Olry, Vanuatu10-27 10:06
  12. 5.0Vanuatu Islands10-31 11:31
  13. 4.9Vanuatu Islands11-10 19:54
  14. 4.9Vanuatu Islands11-01 10:34
  15. 4.8Vanuatu Islands10-31 23:57
  16. 4.8Vanuatu Islands11-01 11:56
  17. 4.8Port-Olry, Vanuatu11-01 12:08
  18. 4.7Port-Olry, Vanuatu11-01 07:37
  19. 4.6Port-Olry, Vanuatu10-26 14:03
  20. 4.6Port-Olry, Vanuatu10-26 15:08
  21. 4.4Port-Olry, Vanuatu11-01 07:24
  22. 4.3Sola, Vanuatu10-31 11:56

Did you feel it?

Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.

Reports close 14 days after an earthquake.

Reports on SeismoAtlas

No reports yet.

Event id gfz2026uyvq. First recorded here 26 Oct 2026, 05:09:24 UTC. Solutions: GFZ (geofon:gfz2026uyvq); USGS (usgs:us6000u4y2). Cite as: SeismoAtlas, “M4.8 earthquake – Vanuatu Islands”, https://seismoatlas.com/earthquake/gfz2026uyvq-m4-8-earthquake-vanuatu-islands, data from USGS, GFZ.

JSON: /api/v1/events/gfz2026uyvq. SeismoAtlas is not an official warning service.