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Indonesia · West Sumatra

M4.0 Earthquake near Kepulauan Mentawai, West Sumatra (Indonesia)

UTC time: 2026-10-03 13:03:30 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M4.0
Depth
15.0 km
Source
EMSC

West Sumatra · Kepulauan Mentawai

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About this earthquake

A magnitude M4.0 earthquake was recorded near Kepulauan Mentawai, West Sumatra (Indonesia) on October 3, 2026 at 13:03 UTC. The hypocenter lay relatively close to the surface at around 15 km, increasing how strongly it was felt. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by EMSC. Indonesia: over the past 24 hours, QuakeMap24 logged 26 earthquakes, the strongest at M4.1.

Details

ID
67c611baeeec576ea86e469e155ceb88f541b136
Magnitude
M4.0
Depth
15.0 km
UTC time
2026-10-03 13:03:30 UTC
Local time
—
Country
Indonesia
State
West Sumatra
City
Kepulauan Mentawai
Source
emsc
Coordinates
-1.06000, 98.80000
Temperature
24.5°C

Depth profile

Depth profile Depth: 15 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 15 km
Shallow
15 km
15 km — shallower than the regional average (43.4 km)
Regional average: 43.4 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

Volcanoes nearby

  • Talakmau
    Distance: 183 km ·Complex ·Elevation: 2'911 m ·Indonesia
  • Tandikat-Singgalang
    Distance: 183 km ·Stratovolcano(es) ·Elevation: 2'879 m ·Last eruption: 1924 ·Indonesia
  • Malintang
    Distance: 196 km ·Stratovolcano ·Elevation: 1'988 m ·Indonesia
  • Marapi
    Distance: 201 km ·Complex ·Elevation: 2'885 m ·Last eruption: 2026 ·Indonesia
  • Talang
    Distance: 209 km ·Stratovolcano ·Elevation: 2'575 m ·Last eruption: 2007 ·Indonesia
  • Sorikmarapi
    Distance: 211 km ·Stratovolcano ·Elevation: 2'145 m ·Last eruption: 1986 ·Indonesia

West Sumatra

Context for this earthquake

03 Oct 2025 – 03 Oct 2026 · M ≥ 3.0 · 45 Catalogue entries

Of 44 other entries for this area and period, 10 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Indonesia

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Country statistics · Indonesia

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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