Fire near Tamatave (MG)

19.60°S, 48.50°E · first detected on 20 October at 12:09

What the satellites measured

This fire was tracked from 20 October at 12:09 to 23 October at 13:30, that is 3 days, through 61 satellite detections. The detected extent reaches 1,302 ha.

Detected extent: 1,302 ha
Cumulative power: 1,117 MW
Peak power, one pixel: 104 MW
VIIRS and MODIS detections: 61
Estimated emissions: 4.8 kt of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 20 October 2026 to 23 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).

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 6 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
23 October at 13:32	81 MW	4	Met12
23 October at 13:30	198 MW	9	N
23 October at 13:02	18 MW	1	Met12
23 October at 12:52	52 MW	3	Met12
23 October at 12:51	150 MW	11	N21
23 October at 12:49	51 MW	1	Met9
23 October at 12:42	219 MW	4	Met12
23 October at 12:32	42 MW	3	Met12
23 October at 12:22	44 MW	2	Met12
23 October at 12:19	83 MW	2	Met9
23 October at 12:12	49 MW	2	Met12
23 October at 12:09	91 MW	5	N20
23 October at 12:04	31 MW	1	Met9
23 October at 12:02	56 MW	4	Met12
23 October at 11:52	76 MW	4	Met12
23 October at 11:49	79 MW	7	N
23 October at 11:42	28 MW	2	Met12
23 October at 11:34	58 MW	2	Met9
23 October at 11:22	64 MW	3	Met12
23 October at 11:19	38 MW	1	Met9
23 October at 11:18	52 MW	1	Met9
23 October at 11:12	311 MW	5	Met12
22 October at 17:42	15 MW	1	Met12
22 October at 17:34	32 MW	2	Met9
22 October at 17:32	13 MW	1	Met12
22 October at 17:12	15 MW	1	Met12
22 October at 17:04	123 MW	5	Met9
22 October at 17:02	85 MW	4	Met12
22 October at 16:52	102 MW	5	Met12
22 October at 16:49	264 MW	10	Met9
22 October at 16:34	81 MW	3	Met9
22 October at 16:19	35 MW	2	Met9
22 October at 16:04	180 MW	4	Met9
22 October at 15:49	26 MW	1	Met9
22 October at 15:34	38 MW	2	Met9
22 October at 15:19	53 MW	1	Met9
22 October at 14:49	143 MW	2	Met9
22 October at 14:42	30 MW	1	Met12
22 October at 14:36	233 MW	7	Aqua
22 October at 14:34	55 MW	1	Met9
22 October at 14:19	82 MW	1	Met9
22 October at 14:12	320 MW	5	Met12
22 October at 14:04	466 MW	5	Met9
22 October at 14:02	34 MW	2	Met12
22 October at 13:42	22 MW	2	Met12
22 October at 13:34	278 MW	4	Met9
22 October at 13:32	98 MW	3	Met12
22 October at 13:22	65 MW	4	Met12
22 October at 13:19	38 MW	1	Met9
22 October at 13:13	99 MW	7	N21
22 October at 13:12	46 MW	3	Met12
22 October at 13:04	157 MW	5	Met9
22 October at 13:02	79 MW	3	Met12
22 October at 12:52	36 MW	1	Met12
22 October at 12:28	20 MW	6	N20
22 October at 12:12	10 MW	1	Met12
22 October at 12:09	87 MW	9	N
22 October at 12:02	51 MW	2	Met12
22 October at 11:52	14 MW	1	Met12
22 October at 11:42	176 MW	7	Met12
22 October at 11:34	26 MW	1	Met9
22 October at 11:32	23 MW	1	Met12
22 October at 11:30	337 MW	9	N21
22 October at 11:22	81 MW	4	Met12
22 October at 07:32	40 MW	2	Met12
21 October at 14:49	53 MW	2	Met9
21 October at 14:34	93 MW	3	Met9
21 October at 14:19	85 MW	3	Met9
21 October at 14:12	68 MW	3	Met12
21 October at 14:04	18 MW	1	Met9
21 October at 13:52	54 MW	3	Met12
21 October at 13:49	134 MW	3	Met9
21 October at 13:42	12 MW	1	Met12
21 October at 13:34	55 MW	2	Met9
21 October at 13:32	33 MW	2	Met12
21 October at 13:22	62 MW	4	Met12
21 October at 13:19	48 MW	1	Met9
21 October at 13:12	63 MW	5	Met12
21 October at 13:04	52 MW	2	Met9
21 October at 13:02	44 MW	3	Met12
21 October at 12:52	96 MW	4	Met12
21 October at 12:49	196 MW	4	Met9
21 October at 12:45	266 MW	14	N20
21 October at 12:42	473 MW	10	Met12
21 October at 12:34	251 MW	5	Met9
21 October at 12:32	313 MW	10	Met12
21 October at 12:26	127 MW	11	N
21 October at 12:22	282 MW	7	Met12
21 October at 12:19	240 MW	3	Met9
21 October at 12:12	232 MW	5	Met12
21 October at 12:04	312 MW	6	Met9
21 October at 12:02	141 MW	5	Met12
21 October at 11:52	10 MW	1	Met12
21 October at 11:49	87 MW	7	N21
21 October at 11:42	15 MW	1	Met12
21 October at 11:33	201 MW	4	Met9
21 October at 11:32	322 MW	5	Met12
21 October at 11:22	203 MW	4	Met12
21 October at 11:18	40 MW	1	Met9
21 October at 11:12	63 MW	2	Met12
21 October at 11:02	32 MW	2	Met12
21 October at 10:42	34 MW	2	Met12
20 October at 13:04	115 MW	4	N20
20 October at 12:45	26 MW	5	N
20 October at 12:09	27 MW	1	N21

8 other fires near Tamatave (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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