Fire near Maranhão (BR)

3.93°S, 44.13°W · first detected on 17 October at 06:12

What the satellites measured

This fire was tracked from 17 October at 06:12 to 23 October at 01:52, that is 6 days, through 81 satellite detections. The detected extent reaches 1,399 ha.

Detected extent: 1,399 ha
Cumulative power: 1,831 MW
Peak power, one pixel: 113 MW
VIIRS and MODIS detections: 81
Estimated emissions: 3.9 kt of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 17 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 8 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 06:19	1 MW	1	N20
23 October at 01:52	21 MW	2	Terra
23 October at 01:14	10 MW	1	Met12
23 October at 01:04	12 MW	1	Met12
23 October at 01:00	22 MW	1	G19
23 October at 00:40	31 MW	1	G19
23 October at 00:36	45 MW	1	Met10
23 October at 00:35	35 MW	1	G19FRP
23 October at 00:34	33 MW	2	Met12
23 October at 00:30	43 MW	1	G19
23 October at 00:25	68 MW	2	G19FRP
23 October at 00:21	37 MW	1	Met10
22 October at 22:40	24 MW	1	G19
22 October at 22:34	15 MW	1	Met12
22 October at 22:24	57 MW	3	Met12
22 October at 22:15	122 MW	3	G19FRP
22 October at 22:14	77 MW	3	Met12
22 October at 22:05	172 MW	2	G19FRP
22 October at 22:04	148 MW	5	Met12
22 October at 22:00	122 MW	1	G19
22 October at 21:55	96 MW	2	G19FRP
22 October at 21:44	35 MW	1	Met12
22 October at 21:35	52 MW	1	G19FRP
22 October at 21:30	58 MW	1	G19
22 October at 21:14	60 MW	3	Met12
22 October at 21:04	41 MW	1	Met12
22 October at 20:50	40 MW	1	G19
22 October at 19:55	137 MW	1	G19FRP
22 October at 19:50	153 MW	1	G19
22 October at 19:45	122 MW	1	G19FRP
22 October at 18:58	8 MW	1	N
22 October at 18:20	28 MW	4	N21
22 October at 06:38	1 MW	1	N20
22 October at 06:19	4 MW	2	N
22 October at 05:42	12 MW	4	N21
22 October at 02:34	12 MW	1	Met12
22 October at 02:14	18 MW	1	Met12
22 October at 02:10	23 MW	1	G19
22 October at 02:05	26 MW	1	G19FRP
22 October at 02:00	30 MW	1	G19
22 October at 01:30	24 MW	1	G19
22 October at 01:14	10 MW	1	Terra
22 October at 00:05	23 MW	1	G19FRP
22 October at 00:04	11 MW	1	Met12
22 October at 00:00	28 MW	1	G19
21 October at 23:54	11 MW	1	Met12
21 October at 23:50	26 MW	1	G19
21 October at 22:54	10 MW	1	Met12
21 October at 22:14	11 MW	1	Met12
21 October at 22:04	14 MW	1	Met12
21 October at 21:54	13 MW	1	Met12
21 October at 21:45	30 MW	1	G19FRP
21 October at 21:44	26 MW	2	Met12
21 October at 21:40	35 MW	1	G19
21 October at 21:35	32 MW	1	G19FRP
21 October at 21:34	30 MW	2	Met12
21 October at 21:25	35 MW	1	G19FRP
21 October at 21:24	46 MW	3	Met12
21 October at 21:15	43 MW	1	G19FRP
21 October at 21:14	80 MW	5	Met12
21 October at 21:06	136 MW	2	Met10
21 October at 21:05	92 MW	1	G19FRP
21 October at 21:04	63 MW	3	Met12
21 October at 21:00	58 MW	1	G19
21 October at 20:55	143 MW	3	G19FRP
21 October at 20:54	25 MW	1	Met12
21 October at 20:51	67 MW	1	Met10
21 October at 20:50	128 MW	2	G19
21 October at 20:45	45 MW	1	G19FRP
21 October at 20:44	66 MW	4	Met12
21 October at 20:36	178 MW	8	Aqua
21 October at 20:34	97 MW	6	Met12
21 October at 20:30	114 MW	2	G19
21 October at 20:24	58 MW	2	Met12
21 October at 20:21	108 MW	1	Met10
21 October at 20:20	111 MW	2	G19
21 October at 20:15	198 MW	2	G19FRP
21 October at 20:14	71 MW	3	Met12
21 October at 20:10	234 MW	3	G19
21 October at 20:06	133 MW	1	Met10
21 October at 20:04	207 MW	5	Met12
21 October at 20:00	62 MW	1	G19
21 October at 19:54	163 MW	4	Met12
21 October at 19:51	307 MW	3	Met10
21 October at 19:44	643 MW	10	Met12
21 October at 19:36	1,502 MW	5	Met10
21 October at 19:35	507 MW	1	G19FRP
21 October at 19:34	244 MW	6	Met12
21 October at 19:30	716 MW	2	G19
21 October at 19:24	491 MW	7	Met12
21 October at 19:21	58 MW	1	Met10
21 October at 19:20	58 MW	1	G19
21 October at 19:15	43 MW	5	N
21 October at 19:14	30 MW	1	Met12
21 October at 19:10	64 MW	1	G19
21 October at 19:04	13 MW	1	Met12
21 October at 18:44	20 MW	1	Met12
21 October at 18:39	118 MW	12	N21
21 October at 18:36	63 MW	1	Met10
21 October at 18:34	34 MW	1	Met12
21 October at 18:30	47 MW	1	G19
21 October at 18:04	13 MW	1	Met12
21 October at 17:56	93 MW	10	N20
21 October at 17:54	30 MW	1	Met12
21 October at 17:44	25 MW	2	Met12
21 October at 17:40	43 MW	1	G19
21 October at 17:24	60 MW	2	Met12
21 October at 17:21	129 MW	2	Met10
21 October at 17:20	42 MW	1	G19
21 October at 16:34	21 MW	1	Met12
21 October at 16:24	64 MW	2	Met12
21 October at 16:14	56 MW	2	Met12
21 October at 16:05	56 MW	1	Met10
21 October at 06:38	2 MW	1	N
20 October at 22:04	119 MW	3	Met12
20 October at 22:00	217 MW	2	G19
20 October at 21:40	76 MW	1	G19
20 October at 21:30	107 MW	1	G19
20 October at 21:24	21 MW	1	Met12
20 October at 21:10	84 MW	1	G19
20 October at 21:00	101 MW	1	G19
20 October at 20:30	45 MW	1	G19
20 October at 20:24	12 MW	1	Met12
20 October at 20:14	17 MW	1	Met12
20 October at 20:00	210 MW	3	G19
20 October at 19:54	22 MW	1	Met12
20 October at 19:44	58 MW	2	Met12
20 October at 19:40	74 MW	1	G19
20 October at 19:34	32 MW	1	Met12
20 October at 19:30	136 MW	1	G19
20 October at 19:24	121 MW	3	Met12
20 October at 19:20	220 MW	2	G19
20 October at 19:14	97 MW	3	Met12
20 October at 19:04	82 MW	3	Met12
20 October at 19:00	52 MW	1	G19
20 October at 18:50	51 MW	1	G19
20 October at 18:44	105 MW	3	Met12
20 October at 18:34	99 MW	4	Met12
20 October at 18:30	59 MW	1	G19
20 October at 18:24	109 MW	3	Met12
20 October at 18:20	67 MW	1	G19
20 October at 18:14	83 MW	2	Met12
20 October at 18:13	256 MW	11	N20
20 October at 18:04	94 MW	3	Met12
20 October at 18:00	205 MW	2	G19
20 October at 17:56	1,111 MW	17	N
20 October at 17:54	55 MW	2	Met12
20 October at 17:50	389 MW	2	G19
20 October at 17:44	198 MW	4	Met12
20 October at 17:34	65 MW	2	Met12
20 October at 17:30	105 MW	1	G19
20 October at 17:24	40 MW	1	Met12
20 October at 17:20	188 MW	1	G19
20 October at 17:14	292 MW	5	Met12
20 October at 17:04	87 MW	2	Met12
20 October at 16:54	181 MW	3	Met12
20 October at 16:44	670 MW	5	Met12
20 October at 16:34	350 MW	4	Met12
20 October at 16:24	192 MW	5	Met12
20 October at 16:14	215 MW	4	Met12
20 October at 16:04	319 MW	4	Met12
20 October at 16:00	277 MW	2	G19
20 October at 15:55	539 MW	2	G19FRP
20 October at 15:54	474 MW	4	Met12
20 October at 15:50	735 MW	4	G19
20 October at 15:45	183 MW	1	G19FRP
20 October at 15:44	186 MW	3	Met12
20 October at 15:40	206 MW	1	G19
20 October at 15:35	171 MW	2	G19FRP
20 October at 15:34	220 MW	4	Met12
20 October at 15:30	203 MW	2	G19
20 October at 15:25	80 MW	1	G19FRP
20 October at 15:24	52 MW	2	Met12
20 October at 15:20	93 MW	1	G19
20 October at 15:15	97 MW	1	G19FRP
20 October at 15:14	47 MW	2	Met12
20 October at 15:10	108 MW	1	G19
20 October at 15:05	82 MW	1	G19FRP
20 October at 15:04	108 MW	3	Met12
20 October at 14:55	193 MW	2	G19FRP
20 October at 14:54	266 MW	4	Met12
20 October at 14:44	56 MW	2	Met12
20 October at 14:24	34 MW	2	Met12
20 October at 14:14	47 MW	2	Met12
20 October at 13:55	20 MW	1	Terra
18 October at 18:52	36 MW	1	N20
18 October at 18:33	17 MW	4	N
18 October at 17:56	8 MW	1	N21
17 October at 18:13	54 MW	5	N21
17 October at 06:32	1 MW	2	N20
17 October at 06:12	1 MW	1	N
16 October at 18:35	45 MW	6	N21
16 October at 17:50	11 MW	2	N20

8 other fires near Maranhão (BR)

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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