Fire near Kalimantan occidental (ID)

1.00°S, 110.58°E · first detected on 23 September at 07:16

What the satellites measured

This fire was tracked from 23 September at 07:16 to 22 October at 08:50, that is 29 days, through 2,180 satellite detections. The detected extent reaches 46,206 ha.

Detected extent: 46,206 ha
Cumulative power: 38,994 MW
Peak power, one pixel: 290 MW
VIIRS and MODIS detections: 2,180
Estimated emissions: 3.9 kt of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 5 October 2026 to 21 October 2026. An order-of-magnitude estimate from GFAS (ECMWF, Copernicus CAMS): it also counts neighbouring fires in the same cell. Contains modified Copernicus Atmosphere Monitoring Service information (2026). Published data stop on 21 October 2026.

These four figures cover the polar orbits alone, the ones that measure an area. The pass table below also counts geostationary detections, more frequent but too coarse for geometry, and its power column sums a whole pass where the peak above is that of a single pixel.

“Detected extent” is not “burned area”: it is the union of the ground footprints of the satellite pixels, and a pixel counts in full (375 m for VIIRS, 1 km for MODIS) even when only a forest edge is burning. Compared with press figures it is in practice one and a half to three times the area reported. Detections taken at the edge of the scan swath, too coarse to measure anything at all, are excluded. These figures come from thermal detection and are not an official assessment: only the emergency services and the competent authorities are authoritative.

Replay how the fire spread

The map is framed on this fire's footprint and loads only its detections. The timeline below covers the period in which satellites saw it, from the first to the last detection, with twelve hours before and twenty-four after; the ticks on the bar mark the emergency services' announcements that fall within it. The cursor opens on the most powerful pass, and playback replays the whole fire in about thirty seconds. “1 h” shows what is burning within an hour of the chosen moment : the map then follows the power curve below and empties when it falls. “24 h” stacks twenty-four hours : a fire stays visible between two satellite passes, which come two to four times a day. Both are true, but they say different things.

How the radiative power evolved

One point per satellite pass: the sum of the fire radiative power measured over the fire. This is the curve that says whether the fire eased off or picked up again, which no cumulative figure shows. The window covers 30 days; beyond that, clustering would merge two successive fires in the same place.

Fire dynamics

Loading history…

Satellite passes in detail

Pass	Power summed over the pass	Detections	Sensor
22 October at 09:55	41 MW	1	Him9
22 October at 09:45	51 MW	1	Him9
22 October at 09:35	227 MW	4	Him9
22 October at 09:25	384 MW	5	Him9
22 October at 09:15	361 MW	7	Him9
22 October at 09:05	111 MW	3	Him9
22 October at 08:55	290 MW	7	Him9
22 October at 08:50	430 MW	20	N
22 October at 08:45	298 MW	5	Him9
22 October at 08:35	340 MW	7	Him9
22 October at 08:25	306 MW	7	Him9
22 October at 08:15	162 MW	2	Him9
22 October at 08:12	256 MW	10	N21
22 October at 08:05	105 MW	2	Him9
22 October at 07:27	22 MW	3	N20
21 October at 09:25	33 MW	1	Him9
21 October at 09:15	46 MW	1	Him9
21 October at 09:07	71 MW	6	N
21 October at 09:05	137 MW	3	Him9
21 October at 08:55	144 MW	2	Him9
21 October at 08:45	122 MW	2	Him9
21 October at 08:31	385 MW	9	N21
21 October at 07:27	63 MW	3	N
20 October at 20:28	3 MW	1	N
19 October at 08:27	106 MW	7	N20
19 October at 07:27	14 MW	3	N21
18 October at 10:33	22 MW	2	Aqua
18 October at 08:44	9 MW	3	N20
18 October at 08:22	153 MW	15	N
17 October at 08:05	27 MW	2	N21
15 October at 08:44	7 MW	1	N21
15 October at 07:40	2 MW	1	N
14 October at 08:18	194 MW	21	N20
12 October at 08:57	371 MW	12	N20
12 October at 08:35	635 MW	19	N
12 October at 07:16	32 MW	2	N20
10 October at 10:22	46 MW	3	Aqua
10 October at 08:37	78 MW	8	N21
10 October at 07:33	25 MW	4	N
9 October at 19:58	3 MW	2	N21
9 October at 08:57	199 MW	8	N21
9 October at 08:12	220 MW	13	N20
8 October at 08:31	103 MW	6	N20
8 October at 07:33	108 MW	2	N21
7 October at 10:07	32 MW	1	Aqua
7 October at 08:50	66 MW	8	N20
7 October at 08:29	442 MW	21	N
6 October at 20:11	1 MW	1	N20
6 October at 15:27	33 MW	2	Terra
6 October at 08:50	427 MW	16	N
6 October at 08:12	112 MW	11	N21
5 October at 20:10	10 MW	7	N
5 October at 19:32	2 MW	1	N21
5 October at 10:28	202 MW	12	Aqua
5 October at 09:07	330 MW	17	N
5 October at 08:31	1,323 MW	59	N21
5 October at 07:27	573 MW	26	N
4 October at 20:28	4 MW	2	N
4 October at 19:52	1 MW	1	N21
4 October at 08:50	766 MW	44	N21
4 October at 08:05	561 MW	7	N20
4 October at 07:46	931 MW	59	N
4 October at 07:10	253 MW	6	N21
3 October at 19:26	3 MW	2	N20
3 October at 15:08	10 MW	2	Terra
3 October at 08:26	3,033 MW	125	N20
3 October at 08:05	141 MW	2	N
3 October at 07:27	1,195 MW	76	N21
2 October at 20:28	2 MW	1	N21
2 October at 19:43	3 MW	3	N20
2 October at 19:26	1 MW	1	N
2 October at 10:13	1,229 MW	53	Aqua
2 October at 08:44	4,039 MW	248	N20
2 October at 08:22	3,593 MW	194	N
2 October at 07:48	58 MW	1	N21
1 October at 20:04	6 MW	7	N20
1 October at 08:44	771 MW	37	N
1 October at 08:05	2,370 MW	100	N21
30 September at 10:37	481 MW	18	Aqua
30 September at 09:01	1,718 MW	142	N
30 September at 08:25	3,360 MW	178	N21
30 September at 07:40	2,129 MW	89	N20
30 September at 07:23	456 MW	26	N
29 September at 08:44	729 MW	41	N21
29 September at 07:59	8 MW	1	N20
29 September at 07:40	223 MW	35	N
28 September at 08:18	18 MW	4	N20
27 September at 08:18	8 MW	2	N
26 September at 08:57	23 MW	2	N20
26 September at 08:35	125 MW	12	N
25 September at 20:15	1 MW	1	N20
24 September at 20:15	2 MW	4	N
24 September at 08:37	364 MW	24	N21
24 September at 07:33	221 MW	12	N
23 September at 20:53	1 MW	1	N20
23 September at 20:34	22 MW	9	N
23 September at 19:58	55 MW	30	N21
23 September at 19:13	18 MW	5	N20
23 September at 15:12	54 MW	6	Terra
23 September at 08:57	178 MW	13	N21

8 other fires near Kalimantan occidental (ID)

Separate fires, apart in time or in space, not pieces of this one. A single municipality can have several over one summer, and a forest massif often covers more than a hundred square kilometres.

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