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M5.1 Earthquake near 203 km NW of Port-Olry, Vanuatu

UTC time: 2026-10-23 22:05:11 UTC Local time: —

Magnitude

M5.1

Depth: 10.0 km
Source: USGS

203 km NW of Port-Olry, Vanuatu

Map

About this earthquake

On October 23, 2026 at 22:05 UTC, a magnitude M5.1 earthquake occurred near 203 km NW of Port-Olry, Vanuatu. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

The event was recorded by USGS.

Details

258032aa72d34ed46f3f45b6be7330ad0f81df06

Magnitude

M5.1

Depth

10.0 km

UTC time

2026-10-23 22:05:11 UTC

Local time

—

Country

—

Source

usgs

Coordinates

-13.87640, 165.61720

Temperature

26.5°C

Depth profile

Shallow

10 km

Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Tectonic context

Located on the Australia Plate.

Near the boundary New Hebrides ↔ Australia · about 59 km away

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation

Port Vila526.4 kmSE35'901

GeoNames · CC BY 4.0

Volcanoes nearby

Suretamatai

Distance: 200 km ·Complex ·Elevation: 921 m ·Last eruption: 1966 ·Vanuatu
Gaua

Distance: 209 km ·Stratovolcano ·Elevation: 729 m ·Last eruption: 2022 ·Vanuatu
Motlav

Distance: 223 km ·Stratovolcano ·Elevation: 411 m ·Vanuatu
Ambae Activity reported

Distance: 292 km ·Shield ·Elevation: 1'496 m ·Last eruption: 2026 ·Vanuatu
Ambrym Activity reported

Distance: 377 km ·Shield(pyroclastic) ·Elevation: 1'334 m ·Last eruption: 2024 ·Vanuatu
Tinakula

Distance: 389 km ·Stratovolcano ·Elevation: 796 m ·Last eruption: 2024 ·Solomon Islands

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours3

First 24 hours15

First 72 hours19

Strongest subsequent eventM6.9

M4.52026-10-24 00:27:44 UTC12.3 kmVANUATU M6.92026-10-24 02:31:28 UTC21.4 km###.# km ( ###.# mi) WSW (az= 253.1) from Quartzsite, AZ M5.02026-10-24 03:51:34 UTC24.9 kmVanuatu Islands M4.82026-10-24 05:10:34 UTC33.5 kmVANUATU M5.82026-10-24 05:23:41 UTC22.3 kmVanuatu Islands M4.52026-10-24 05:35:54 UTC18.1 kmVANUATU M5.02026-10-24 06:52:02 UTC39.5 kmVanuatu Islands M5.02026-10-24 06:52:04 UTC20.9 kmVANUATU M4.72026-10-24 08:20:01 UTC20.0 kmVANUATU M4.92026-10-24 09:38:49 UTC35.1 kmVANUATU M4.92026-10-24 11:14:00 UTC14.1 kmVANUATU M4.82026-10-24 13:53:00 UTC13.8 kmVANUATU

Comparison of seismic sources

3 sources currently report magnitudes from M5.1 to M5.4.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference

GFZM5.210.0 km35.8 km

USGSM5.110.0 km0.0 km

EMSCM5.445.0 km17.5 km

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#12

Earlier events M≥443

Earlier events M≥525

Compared since2025-02-03

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M6.62026-10-20 04:20:37 UTC15.3 km195 km NW of Port-Olry, Vanuatu M6.22026-10-19 07:49:05 UTC25.2 kmVanuatu Islands M6.02026-07-24 21:37:56 UTC124.5 kmTorba M5.82026-10-19 18:52:36 UTC18.5 kmVanuatu Islands M5.62026-01-09 23:19:36 UTC103.8 kmTorba

Stats (last 24h)

Global (24h)

554

Country (24h)

—

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