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ID · Indonesia · –

Kutai Timur fire, 7 September 2019 Kutai Timur

Out · last measured on 4 Oct 2019

The fire started on 7 September 2019 in Kutai Timur, Indonesia, and satellites saw it burning for 28 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,130 hectares from heat detections, spread across a single municipality.

It is the 3th largest in East Kalimantan since 2016 (of 35 with a page). Number 71 in Indonesia in 2019, of 409.

We have the GWIS perimeter for this fire, but the VIIRS sensors did not capture it in enough detail: no day-by-day evolution, but the split by municipality is there.

Burnt area
5,130ha
GWIS perimeter (Copernicus)
Duration
28days
7 Sept 2019 – 4 Oct 2019
Municipalities hit
1
regencies
Started on
7 Sept
2019
Danger at start
12
Moderate · FWI index

Where it burned

The weather it burned in

38°high
39km/h · peak gust
33%lowest humidity

It had gone 5 days without rain (1 mm or more) when it started. Rain came after the fire: 2.7 mm on 5 Oct.

This area had burned before

9% of the perimeter overlaps earlier fires recorded since 2016: 483 ha in 2016.

How big is it?

10 km
It burned the equivalent of 3.2% of the area of London (51 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Kutai Timur where it started
    5,164 ha
    0.2 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.

People and buildings inside the perimeter

GHSL 2020
Built-up area0.25 ha
Residents≈ 40

Inside the perimeter there were about 0.25 hectares of built-up land and about 40 residents (GHSL 2020, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

The weather day by day

ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.

Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

Day High Min. humidity Peak gust Rain Danger (FWI)
7 Sept 35.7 °C 47 % 20 km/h 0.4 mm Moderate 12
8 Sept 36.4 °C 47 % 19 km/h 0.4 mm Moderate 12
9 Sept 35.0 °C 47 % 26 km/h 0.0 mm Moderate 13
10 Sept 36.0 °C 41 % 23 km/h 0.0 mm Moderate 15
11 Sept 35.4 °C 45 % 23 km/h 0.0 mm Moderate 16
12 Sept 34.6 °C 43 % 32 km/h 0.0 mm Moderate 16
13 Sept 33.1 °C 43 % 39 km/h 0.0 mm Moderate 19
14 Sept 35.6 °C 36 % 32 km/h 0.0 mm Moderate 19
15 Sept 35.5 °C 39 % 26 km/h 0.0 mm Moderate 21
16 Sept 35.6 °C 40 % 22 km/h 0.0 mm Moderate 21
17 Sept 35.6 °C 44 % 26 km/h 0.0 mm Moderate 21
18 Sept 36.1 °C 40 % 27 km/h 0.0 mm Moderate 21
19 Sept 36.3 °C 41 % 26 km/h 0.0 mm High 23
20 Sept 36.6 °C 39 % 29 km/h 0.0 mm High 23
21 Sept 35.1 °C 47 % 19 km/h 0.8 mm Moderate 16
22 Sept 36.4 °C 40 % 25 km/h 0.3 mm High 21
23 Sept 37.8 °C 34 % 32 km/h 0.2 mm High 25
24 Sept 38.3 °C 33 % 30 km/h 0.0 mm High 28
25 Sept 36.6 °C 41 % 25 km/h 0.9 mm Moderate 20
26 Sept 37.8 °C 36 % 24 km/h 1.3 mm Moderate 20
27 Sept 36.5 °C 39 % 26 km/h 2.5 mm Moderate 12
28 Sept 36.2 °C 40 % 29 km/h 3.7 mm Low 7
29 Sept 34.8 °C 48 % 25 km/h 7.2 mm Very low 3
30 Sept 32.5 °C 59 % 23 km/h 24.5 mm Very low 0
1 Oct 33.4 °C 53 % 20 km/h 0.3 mm Very low 2
2 Oct 34.8 °C 52 % 23 km/h 12.7 mm Very low 1
3 Oct 32.1 °C 64 % 23 km/h 8.5 mm Very low 0
4 Oct 31.5 °C 66 % 21 km/h 9.5 mm Very low 0
5 Oct after 32.0 °C 59 % 21 km/h 2.7 mm Very low 0

Its twins: fires that started in the same weather

It started with an FWI of 11.7, a minimum humidity of 47% and 5 days without rain. Fires in the area that started in weather like this since 2016: 12.

FWI at the start 11.7
Minimum humidity 47 %
Days without rain 5
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Kutai Kartanegara fire, September 2024
1,850 ha 8 days FWI 11.1 Min. humidity 51 % 37 km away, in 2024

First rain (1 mm or more) after it ended: 12.4 mm on 24 Sept.

What happened to them

Fires in the area that started in similar weather: 12. With fewer than 15 we give no figures: they would be more noise than signal.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

2.7 mmfirst rain
5 Octthe day after it ended
39km/h · max. gust

It was considered over on 4 Oct, and on 5 Oct 2.7 mm fell. We do not know whether the rain or the firefighters put it out.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 31 Aug 2019
After · 11 Oct 2019

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

Other fires nearby

All fires in Indonesia

Frequently asked questions

How long did the Kutai Timur fire last?
GWIS (Copernicus) dates it between 7 September 2019 and 4 October 2019: 28 days between the first and last heat detection of the perimeter.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,130 hectares (51.3 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Kutai Timur (5,164 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 38.3 °C, humidity dropped to 33 % and gusts hit 39 km/h. The fire danger index (FWI) reached 28, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Indonesia (geoBoundaries). It is not an official report.

Where to verify it

A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.

Emergency number: 112 · Emergency number and official warnings

Satellite cross-check

History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

Does something look wrong on this page?

This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.

Report an error
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 112.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. No Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2020, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology

Where this data comes from

The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM2 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.