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 - 02 Dec

GDACS Score

For more info on GDACS alert score click here.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Indonesia - Severe weather, update (ECHO 05 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 05 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 05 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, Thailand, Malaysia - Severe weather and floods, update (ECHO 05 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 05 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.

Sulawesi Island, Indonesia, Late November 2025Disaster authorities reported flooding in areas of Sulawesi Island in 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

Asia floods highlight the deadly impacts of ‘rampant’ deforestation 12/5/2025 2:02:00 PM.

Overlapping tropical storms and “intensified” monsoon systems have unleashed widespread devastation across Asia, with rescue teams still racing to reach isolated survivors. Days of record-breaking rainfall and storm surges triggered catastr
...(more)
Sumatra floods: Deaths 867, military ramps up aid 12/5/2025 1:51:00 PM.

Indonesia’s military has stepped up relief in flood-hit Sumatra, building portable “Bailey bridges” and deploying water purification systems to reach stranded residents. The death toll from last week’s cyclone rose to 867, with 521 missing.
...(more)
Indonesian military steps up relief for flood-hit Sumatra; death toll .. 12/5/2025 1:46:00 PM.

Indonesia (Reuters) - Indonesia''s military stepped up its relief efforts in three provinces on Sumatra island devastated by deadly floods and landslides, with many residents still stranded without access to government aid. The death toll f
...(more)
Cyclone Ditwah affects 1.5 million in Sri Lanka, Red Cross launches ap.. 12/5/2025 1:32:00 PM.

The International Federation of Red Cross and Red Crescent Societies (IFRC) issued a stark warning on Friday about a severe and escalating humanitarian emergency in Sri Lanka. Cyclone Ditwah has unleashed unprecedented rainfall on the islan
...(more)

View more news

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),