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M4.8 earthquake 62 km S of Isangel, Tafea, Vanuatu

A magnitude 4.8 earthquake struck 62 km S of Isangel, Tafea, Vanuatu at 00:47 local time (13:47 UTC) on 4 Sept 2026, at a depth of 114 km, according to USGS.

Data: USGS · updated 2026-09-11 21:30 UTC · reviewed

Magnitude
4.8light
body-wave magnitude (mb)
Depth
113.7 km
Status
Reviewed
Origin time
2026-09-03 13:47:10 UTC
Local: 4 Sept 2026, 00:47:10 (Pacific/Efate)
Epicentre
20.099° S, 169.303° 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
IsangelTafea, Vanuatu · pop. 1,43762 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.

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
USGSheadlineUSGS NEIC via U.S. Geological Survey4.8 mb113.7 km20.10° S, 169.30° 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 114 km this was a intermediate-depth earthquake, which spreads shaking over a wider area but less intensely.

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

1 later earthquake within 32 km; the largest was M4.1 17 days ago. 1 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M4.8

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
191.574.1113
  1. 4.158 km S of Isangel, Tafea, Vanuatu09-11 13:21

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 us7000tdz8. First recorded here 28 Sept 2026, 17:32:13 UTC. Solutions: USGS (usgs:us7000tdz8). Cite as: SeismoAtlas, “M4.8 earthquake 62 km S of Isangel, Tafea, Vanuatu”, https://seismoatlas.com/earthquake/us7000tdz8-m4-8-earthquake-62-km-s-of-isangel-tafea-vanuatu, data from USGS.

JSON: /api/v1/events/us7000tdz8. SeismoAtlas is not an official warning service.