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Landslides – Sumatera Utara

Landslide potential for the next 3 days from hazard zones and rainfall in every regency/city

9
High-potential areas
9
Moderate-potential areas
16
Regencies/cities in high hazard zones
134 mm
Heaviest daily rain, next 3 days · Kab. Dairi
View all of Indonesia

Landslide potential map

High potentialModerate potentialLow potentialVery low potential Hazard zone low–high Citizen reports

Each dot sits in the part of the area with the highest landslide hazard, where rainfall is measured. Click a dot for details. Hazard-zone shading can be switched off in the top-right corner of the map.

Sumatera Utara

33 kabupaten/kota: 9 Tinggi 9 Menengah 6 Rendah 9 Sangat rendah

16 wilayah berada di zona bahaya longsor tinggi. ← All of Indonesia

Latest landslide news

All landslide news

Kabupaten/kota rawan di Sumatera Utara

Bar chart: daily rain over the last 3 days and the forecast for the next 3 days (light blue) in the most landslide-prone part of the area.

Regency/cityPotentialHazard zoneRain, last 3 daysMax. rain, next 3 daysDaily rainfall
Kab. Dairi High High
49% of the area in a high hazard zone		 39 mm 134 mm
Sangat lebat
Kab. Pakpak Bharat High High
65% of the area in a high hazard zone		 68 mm 117 mm
Sangat lebat
Kab. Tapanuli Utara High High
50% of the area in a high hazard zone		 28 mm 116 mm
Sangat lebat
Kab. Tapanuli Tengah High High
47% of the area in a high hazard zone		 37 mm 80 mm
Heavy
Kab. Samosir High High
45% of the area in a high hazard zone		 28 mm 69 mm
Heavy
Kab. Humbang Hasundutan High High
50% of the area in a high hazard zone		 43 mm 64 mm
Heavy
Kab. Langkat High High
31% of the area in a high hazard zone		 49 mm 62 mm
Heavy
Kab. Nias Selatan High High
44% of the area in a high hazard zone		 63 mm 56 mm
Heavy
Kab. Labuhanbatu Utara High High
31% of the area in a high hazard zone		 54 mm 54 mm
Heavy
Kab. Karo Moderate High
51% of the area in a high hazard zone		 43 mm 40 mm
Moderate
Kab. Nias Moderate High
39% of the area in a high hazard zone		 34 mm 32 mm
Moderate
Kab. Mandailing Natal Moderate High
40% of the area in a high hazard zone		 23 mm 32 mm
Moderate
Kab. Tapanuli Selatan Moderate High
66% of the area in a high hazard zone		 18 mm 30 mm
Moderate
Kota Padang Sidempuan Moderate High
38% of the area in a high hazard zone		 27 mm 27 mm
Moderate
Kab. Nias Barat Moderate High
30% of the area in a high hazard zone		 36 mm 27 mm
Moderate
Kab. Toba Moderate High
58% of the area in a high hazard zone		 33 mm 24 mm
Moderate
Kota Sibolga Moderate Moderate
0% of the area in a high hazard zone		 40 mm 79 mm
Heavy
Kab. Deli Serdang Moderate Moderate
11% of the area in a high hazard zone		 45 mm 54 mm
Heavy
Kab. Simalungun Low Moderate
19% of the area in a high hazard zone		 30 mm 36 mm
Moderate
Kab. Nias Utara Low Moderate
23% of the area in a high hazard zone		 43 mm 35 mm
Moderate
Kota Gunungsitoli Low Moderate
29% of the area in a high hazard zone		 39 mm 33 mm
Moderate
Kab. Asahan Low Moderate
11% of the area in a high hazard zone		 43 mm 28 mm
Moderate
Kab. Padang Lawas Low Moderate
29% of the area in a high hazard zone		 40 mm 23 mm
Moderate
Kab. Padang Lawas Utara Low Moderate
27% of the area in a high hazard zone		 18 mm 22 mm
Moderate

Laporan penyelidikan Badan Geologi di Sumatera Utara

PVMBG field findings on landslide events: site conditions, causes, and technical recommendations.

Calon Lahan Huntap di Kecamatan Pinangsori, Kabupaten Tapanuli Tengah, Provinsi Sumatera Utara

Event 04 Sep 2026 · Desa Albion Prancis, Kec. Pinang Sori, Sumatera Utara

Full report · PDF · Location

Calon Lahan Huntap Tanah Merah Hutanabolon, Kelurahan Tukka, Kecamatan Tukka, Kabupaten Tapanuli Tengah, Provinsi Sumatera Utara

Event 04 Sep 2026 · Desa Tukka, Kec. Tukka, Sumatera Utara

Full report · PDF · Location

Calon Lahan Huntap di Lahan Asrama Haji Pinangsori, Kecamatan Pinangsori, Kabupaten Tapanuli Tengah, Provinsi Sumatera Utara

Event 04 Sep 2026 · Desa Sitonong Bangun, Kec. Pinang Sori, Sumatera Utara

Full report · PDF · Location

Source: Geological Agency – MAGMA Indonesia.

Citizen reports: landslides (30 days)

No verified landslide reports yet. Seeing ground cracks, a collapsing slope, or a landslide near you? Report here.

Know the signs and stay safe

Early signs of a landslide

  • New cracks appear in the ground, walls, or floors and widen after rain.
  • Trees, power poles, or fences tilt; doors and windows suddenly stick.
  • New springs appear, or well water and slope seepage suddenly turn muddy.
  • You hear rumbling or gravel falling from a slope.

During hours of heavy rain

  • If you live on a slope or below a cliff, move temporarily to a safer place.
  • Stay away from river valleys at the foot of hills: a landslide can dam a river that then bursts as a flash flood.
  • Avoid roads along steep slopes during and just after heavy rain.

Reduce the risk

  • Do not cut slopes vertically or build ponds and rice fields above steep slopes.
  • Plant deep-rooted trees and build drains so rainwater does not soak into the slope.
  • Report new cracks to the village office or BPBD; contact BPBD or local officials immediately if a landslide occurs.

Read the guide: Landslides: Recognise the Warning Signs and Stay Safe, Facing Floods and Landslides

What the potential levels mean

HighLandslides can occur when rainfall is above normal; old landslides can reactivate
ModerateLandslides can occur, especially in river valleys, road cuts, or disturbed slopes
LowLandslides are rare except on disturbed slopes
Very lowLandslides generally do not occur

How it is calculated. Potential high: high hazard zone (at least 30% of the area) with rain ≥ 50 mm per day in the next 3 days or ≥ 100 mm over the last 3 days. Potential moderate: moderate or higher hazard zone with rain ≥ 20 mm per day or ≥ 50 mm over 3 days.