Overall Orange alert Flood
in Indonesia

Event summary

Flood can have a medium humanitarian impact based on the magnitude, exposed population and vulnerability.

GDACS ID FL 1103633
Glide number: FL-2025-000217-IDN
Death: 434
Displaced: 58610
Countries: Indonesia
From - To 17 Nov - 09 Dec

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Indonesia - Severe weather, update (ECHO 06 Dec 2025)Mon, 01 Dec 2025 10:59

  • The humanitarian impact is increasing on Sumatra Island following recent intense rainfall. The worst-affected provinces are Aceh, North Sumatra, and West Sumatra.
  • According to the National Agency for Disaster Management (BNPB), a total of 442 people have died - 217 in North Sumatra, 96 in Aceh, and 129 in West Sumatra- and 402 are still missing, 209 in North Sumatra, 75 in Aceh, and 118 in West Sumatra. Additionally, the International Federation of Red Cross and Red Crescent Societies, IFRC reports 646 injured people, nearly 300,000 displaced individuals, and 1.1 million affected.
  • National authorities are providing logistical support for those affected.
  • On 1-2 December, light to locally moderate rain is expected in the aforementioned provinces.

Indonesia, Thailand and Malaysia - Floods, update (ECHO 07 Dec 2025)Tue, 02 Dec 2025 11:07

  • The humanitarian impact continues to increase across north-western Indonesia, Peninsular Malaysia, and southern Thailand following the heavy rainfall, floods, and landslides that have occurred over the past week.
  • In Indonesia, the International Federation of Red Cross and Red Crescent Societies (IFRC) reports 593 fatalities, 468 missing people, and 2,600 injured across the provinces of West Sumatra, North Sumatra, and Aceh. Additionally, 1.5 million people have been affected, and almost 600,000 have been displaced. In Malaysia, two people have died, and 18,700 people have been displaced, according to the ASEAN Coordinating Centre for Humanitarian Assistance on disaster management (AHA Centre). Furthermore, in Thailand, the Department of Disaster Prevention and Mitigation (DDPM) reports 178 fatalities, four injured, and more than two million affected.
  • For the next three days, moderate to locally heavy rainfall is expected across Sumatra and Peninsular Malaysia.

Flood in Indonesia - EC/ECHO daily mapTue, 02 Dec 2025 17:31

A new EC/ECHO daily map is now available
Indonesia - Severe weather and floods, update (ECHO 10 Dec 2025)Fri, 05 Dec 2025 11:24

  • Since late November, heavy rainfall has affected northwestern Indonesia, causing flooding and landslides with a significant humanitarian impact.
  • According to the UN Office for the Coordination of Humanitarian Affairs (UN OCHA), as of 4 December, 836 fatalities have been reported in 50 districts across the provinces of Aceh, North Sumatra, and West Sumatra. There are 518 missing individuals, 2,664 injured, and 881,035 internally displaced people, including 817,856 in Aceh, 40,355 in North Sumatra, and 22,824 in West Sumatra. Additionally, 64,643 houses have been damaged in the provinces of Aceh and West Sumatra.
  • DG ECHO Field Expert will travel to Indonesia to assess the humanitarian situation from 5 to 10 December.
  • More rainfall is expected across most of Sumatra Island from 5 to 7 December.
Indonesia - Severe weather and floods, update (ECHO 13 Dec 2025)Tue, 09 Dec 2025 10:43

  • The number of casualties across three provinces of Sumatra (Aceh, North Sumatra, and West Sumatra) due to recent torrential rains continues to rise.
  • According to the ASEAN Coordinating Centre for Humanitarian Assistance on Disaster Management (AHA Centre), 961 people died, almost 300 remain missing, 5,000 have been injured and almost 160,000 have been displaced. In a separate incident, a landslide on 5 December in Bandung, Java Island left three people missing.
  • Humanitarian needs continue to rise, with life-saving support identified as the highest priority. All partners consistently report that the most urgent requirements are WASH services, food assistance, emergency supplies, and logistics support. A DG ECHO field expert is currently in Indonesia to assess the situation on the ground and engage with humanitarian partners.
  • For the next 48 hours, light rain is expected across most of the affected provinces in Sumatra.
Flood in Indonesia - UNITAR-UNOSAT ActivationThu, 11 Dec 2025 03:48

UNITAR-UNOSAT Potentially Damaged Buildings has been activated
Indonesia - Severe weather and floods, update (ECHO 13 Dec 2025)Thu, 11 Dec 2025 11:04

  • The death toll from severe flooding in Indonesia, particularly in northern Sumatra, has been increasing since 17 November.
  • As of 10 December, the National Disaster Management Authority (BNPB) reported 977 fatalities, with Aceh, North Sumatra, and West Sumatra being the most affected provinces. There are also 260 missing individuals and 5,037 injured people. Additionally, approximately 159,000 homes and 3,296 public facilities have been damaged.
  • More rainfall is forecast across northern Sumatra Island on 11 and 12 December.
Indonesia, Thailand, Malaysia - Severe weather and floods, update (ECHO 08 Dec 2025)Wed, 03 Dec 2025 11:09

  • Following the very heavy rainfall, widespread floods, and several landslides that affected the Sumatra island, north-western Indonesia, southern Thailand and Peninsular Malaysia since the second half of November, the humanitarian impact continues to rise.
  • In Indonesia, the Indonesian National Board for Disaster Management (BNPB) reports, as of 3 December, 604 fatalities across the North Sumatra, West Sumatra and Aceh provinces, in addition 464 people missing were also reported across the three provinces. The IFRC also reports 2,600 injured, 578,000 displaced people and a total of approximately 1.5 million affected people throughout the affected provinces.
  • In Thailand, the Department of Disaster Prevention and Mitigation (DDPM) reports 181 fatalities and around 3.9 million affected people across the southern provinces in the Malay Peninsula.
  • Moreover, in Malaysia, according to the ASEAN Disaster Information Network (ADINet), the death toll stands at two, and more than 12,600 people evacuated across 118 evacuation centres were reported.
  • Over the next 72 hours, more rainfall with locally heavy rainfall is forecast over the whole Sumatra island and most of Peninsular Malaysia.
Indonesia, Thailand, Malaysia - Severe weather and floods, update (ECHO 09 Dec 2025)Thu, 04 Dec 2025 11:28

  • Heavy rainfall continues to affect southeast Asia, particularly northwestern Indonesia, southern Thailand, and peninsular Malaysia, leading to a rising humanitarian impact.
  • In Indonesia, UN OCHA reports 770 fatalities, 463 missing, 746,000 displaced, and 3.2 million affected across three provinces of Sumatra: Aceh, West Sumatra, and North Sumatra. In Thailand, the same source reported 185 deaths, 367 missing, 4 million affected, and 219,000 displaced people in 12 southern provinces. Meanwhile, in Malaysia, 37,000 people have been displaced across eight states, Kelantan, Perlis, Perak, Selangor, Kedah, Penang, Terengganu, and Pahang.
  • On 4–6 December, moderate to locally heavy rainfall is expected across most of Sumatra, peninsular Malaysia, and the southernmost regions of Thailand.

Sumatra Island, Indonesia, Late November 2025Disaster authorities reported flooding and landslides in areas of Sumatra Island, Indonesia, in late November 2025.Tue 2 Dec 2025Provided by Copernicus EMS GloFAS
Detailed event map. European Union, 2025. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Nowhere to pray as logs choke flood-hit Indonesian mosque 12/13/2025 12:45:00 AM.

ACEH TAMIANG: Almost two weeks on from devastating floods, Muslim worshippers in Indonesia’s Sumatra who gathered at their local mosque on Friday for prayers were blocked from entering by a huge pile of thousands of uprooted trees. The dead
...(more)
Nowhere to pray as logs choke flood-hit Indonesian mosque 12/12/2025 11:57:00 PM.

A Muslim man washes his face before attending Friday prayers at Al Ihsan Mosque, which was partially damaged by flooding, in Aceh Tamiang, North Sumatra on December 12, 2025. Tropical storms and monsoon rains have pummelled Southeast and So
...(more)
Aerial video shows the devastation from Indonesia floods, landslides 12/12/2025 4:50:00 PM.

Nearly a million people have been displaced after flood waters devastated three provinces in Indonesia, including Aceh. Officials say rebuilding the affected areas will require $3.11 billion in reconstruction and recovery funds.
Pelni Waives Rp1.4 Billion in Shipping Costs for Aid to Sumatra 12/12/2025 3:22:00 PM.

TEMPO.CO Jakarta - PT Pelayaran Nasional Indonesia (Persero) or Pelni waived shipping costs for 47 TEU containers filled with logistics aid sent to various regions in Sumatra to support recovery efforts following post-disaster floods and la
...(more)

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Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (37), (2), NASA (4), DesInventar (1), WMO (1), INFORM (2),