[REVISION HISTORY]

Indonesia forest fires and regional haze crisis

Updated 17 times since CLSTR started tracking revisions of this situation.

What changed

2026-10-18 08:20 UTC → 2026-10-18 10:22 UTC · added ~~removed~~

Indonesia is facing its most severe wildfire and haze crisis in over a decade, driven by El Niño and peatland degradation. Since January 2026, approximately 900,000 hectares have burned across Kalimantan, Sumatra, and Papua, destroying 60% of orangutan habitats in parts of Borneo. The crisis has caused significant human casualties, including four deaths and several severe burns among firefighting teams in Bromo Tengger Semeru National Park. As of October 13, 2026, Indonesia has recorded 283,270 cases of Acute Respiratory Infection (ISPA). Haze from Kalimantan and Sumatra has spread to Java, affecting Jakarta, Banten, and West Java, and has crossed international borders to impact air quality in Malaysia, Singapore, and the Philippines. The aviation sector has also been heavily impacted; since August 11, 2,458 domestic scheduled flights have been affected, including over 1,300 cancellations or postponements. In response, local governments are distributing masks to protect vulnerable populations. ~~In Aceh Barat, officials are preparing 10,000 masks for children and toddlers, while Palembang has distributed 15,000 masks to motorists and pedestrians.~~ At Mount Arjuno, over 27 personnel are conducting manual firefighting due to a lack of aerial water bombing support. ~~The Meteorology, Climatology,~~ Recent NASA satellite imagery recorded between October 14 and ~~Geophysics Agency (BMKG) continues~~ 16, 2026, has revealed high concentrations of carbon monoxide (CO) across various Indonesian regions at an altitude of 5.5 km. While satellite data shows atmospheric distribution, experts note that direct ground-level measurements are required to ~~monitor air quality and wind patterns, advising residents~~ confirm specific exposure risks to ~~limit outdoor activities.~~ the population.

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