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Indonesia · North Sumatra

M4.0 Earthquake near Angkola Muara Tais, North Sumatra (Indonesia)

UTC time: 2026-08-26 06:58:43 UTC Local time: —
Magnitude
M4.0
Depth
111.0 km
Source
EMSC

North Sumatra · Angkola Muara Tais

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About this earthquake

On August 26, 2026 at 06:58 UTC, a magnitude M4.0 earthquake occurred near Angkola Muara Tais, North Sumatra (Indonesia). The earthquake originated at an intermediate depth of about 111 km. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by EMSC. Indonesia: 22 earthquakes were recorded in the past 24 hours, the strongest reaching M5.3.

Details

ID
cfb7e5c0d86134d7ee58675773017809b8940426
Magnitude
M4.0
Depth
111.0 km
UTC time
2026-08-26 06:58:43 UTC
Local time
—
Country
Indonesia
State
North Sumatra
City
Angkola Muara Tais
County
South Tapanuli
Source
emsc
Coordinates
1.28000, 99.26000
Temperature
28.6°C

Depth profile

Depth profile Depth: 111 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 111 km
Intermediate
111 km
111 km — deeper than the regional average (43.2 km)
Regional average: 43.2 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Sorikmarapi
    Distance: 73 km ·Stratovolcano ·Elevation: 2'145 m ·Last eruption: 1986 ·Indonesia
  • Malintang
    Distance: 100 km ·Stratovolcano ·Elevation: 1'988 m ·Indonesia
  • Talakmau
    Distance: 156 km ·Complex ·Elevation: 2'911 m ·Indonesia
  • Tandikat-Singgalang
    Distance: 224 km ·Stratovolcano(es) ·Elevation: 2'879 m ·Last eruption: 1924 ·Indonesia
  • Marapi
    Distance: 229 km ·Complex ·Elevation: 2'885 m ·Last eruption: 2026 ·Indonesia
  • Sinabung Activity reported
    Distance: 231 km ·Stratovolcano ·Elevation: 2'460 m ·Last eruption: 2021 ·Indonesia

North Sumatra

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 66 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

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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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