Fire near Atsimo-Andrefana (MG)

25.01°S, 44.57°E · first detected on 14 October at 12:19

What the satellites measured

This fire was tracked from 14 October at 12:19 to 22 October at 13:10, that is 8 days, through 80 satellite detections. The detected extent reaches 1,161 ha.

Detected extent: 1,161 ha
Cumulative power: 1,523 MW
Peak power, one pixel: 156 MW
VIIRS and MODIS detections: 80
Estimated emissions: 9.9 kt of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 14 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 11 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 14:12	12 MW	1	Met12
22 October at 14:03	86 MW	3	Met9
22 October at 14:02	34 MW	2	Met12
22 October at 13:52	108 MW	4	Met12
22 October at 13:48	209 MW	5	Met9
22 October at 13:47	217 MW	15	N
22 October at 13:42	227 MW	5	Met12
22 October at 13:33	557 MW	3	Met9
22 October at 13:32	871 MW	9	Met12
22 October at 13:22	195 MW	4	Met12
22 October at 13:18	130 MW	2	Met9
22 October at 13:12	286 MW	9	Met12
22 October at 13:10	408 MW	24	N21
22 October at 13:03	39 MW	1	Met9
22 October at 13:02	139 MW	7	Met12
22 October at 12:52	150 MW	8	Met12
22 October at 12:48	40 MW	1	Met9
22 October at 12:42	95 MW	3	Met12
22 October at 12:33	329 MW	3	Met9
22 October at 12:32	358 MW	5	Met12
22 October at 12:26	248 MW	13	N20
22 October at 12:22	89 MW	3	Met12
22 October at 12:12	303 MW	6	Met12
22 October at 12:06	233 MW	14	N
22 October at 12:02	21 MW	1	Met12
22 October at 07:06	8 MW	1	Terra
21 October at 14:52	17 MW	1	Met12
21 October at 14:42	55 MW	2	Met12
21 October at 13:28	42 MW	5	N21
21 October at 13:22	18 MW	1	Met12
21 October at 13:12	109 MW	3	Met12
21 October at 13:02	14 MW	1	Met12
21 October at 12:52	26 MW	1	Met12
21 October at 12:45	163 MW	20	N20
21 October at 12:33	97 MW	2	Met9
21 October at 12:32	42 MW	1	Met12
21 October at 12:26	225 MW	17	N
21 October at 12:22	111 MW	5	Met12
21 October at 12:18	81 MW	1	Met9
21 October at 12:12	526 MW	11	Met12
21 October at 12:02	132 MW	4	Met12
21 October at 11:52	29 MW	1	Met12
21 October at 11:47	360 MW	14	N21
21 October at 11:42	336 MW	6	Met12
21 October at 11:32	152 MW	3	Met12
21 October at 11:22	18 MW	1	Met12
21 October at 11:12	22 MW	1	Met12
21 October at 11:02	41 MW	1	Met12
20 October at 15:22	11 MW	1	Met12
20 October at 15:12	31 MW	2	Met12
20 October at 15:03	88 MW	3	Met9
20 October at 15:02	119 MW	4	Met12
20 October at 14:59	7 MW	1	Aqua
20 October at 13:42	35 MW	2	Met12
20 October at 13:33	46 MW	1	Met9
20 October at 13:32	73 MW	4	Met12
20 October at 13:22	36 MW	2	Met12
20 October at 13:18	41 MW	1	Met9
20 October at 13:04	207 MW	27	N20
20 October at 13:02	41 MW	2	Met12
20 October at 12:52	93 MW	3	Met12
20 October at 12:43	228 MW	35	N
20 October at 12:22	35 MW	2	Met12
20 October at 12:18	50 MW	1	Met9
20 October at 12:12	173 MW	8	Met12
20 October at 12:09	388 MW	37	N21
20 October at 12:03	92 MW	2	Met9
20 October at 12:02	75 MW	2	Met12
20 October at 11:52	70 MW	2	Met12
20 October at 11:22	75 MW	3	Met12
20 October at 11:12	130 MW	4	Met12
20 October at 11:02	127 MW	3	Met12
20 October at 10:52	124 MW	5	Met12
20 October at 10:48	350 MW	4	Met9
20 October at 10:42	47 MW	1	Met12
20 October at 10:12	15 MW	1	Met12
20 October at 10:02	40 MW	3	Met12
19 October at 13:21	613 MW	25	N20
19 October at 13:03	642 MW	23	N
19 October at 12:26	48 MW	3	N21
18 October at 13:42	210 MW	21	N20
18 October at 13:21	286 MW	33	N
18 October at 12:43	264 MW	9	N21
18 October at 12:02	75 MW	10	N20
17 October at 13:40	188 MW	26	N
17 October at 13:04	970 MW	33	N21
17 October at 12:19	189 MW	10	N20
17 October at 12:00	36 MW	4	N
16 October at 14:00	62 MW	6	N
16 October at 13:21	47 MW	3	N21
16 October at 12:38	7 MW	1	N20
16 October at 12:19	2 MW	1	N
15 October at 15:04	30 MW	3	Aqua
15 October at 13:42	105 MW	8	N21
15 October at 12:58	21 MW	4	N20
15 October at 12:02	6 MW	1	N21
14 October at 13:17	228 MW	23	N20
14 October at 12:56	78 MW	3	N
14 October at 12:19	90 MW	5	N21
13 October at 13:34	132 MW	17	N20
13 October at 11:54	136 MW	3	N20
12 October at 14:49	95 MW	6	Aqua

8 other fires near Atsimo-Andrefana (MG)

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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