Fire near Maranhão (BR)

4.22°S, 45.63°W · first detected on 20 October at 01:33

What the satellites measured

This fire was tracked from 20 October at 01:33 to 23 October at 07:04, that is 3 days, through 108 satellite detections. The detected extent reaches 1,295 ha.

Detected extent: 1,295 ha
Cumulative power: 1,350 MW
Peak power, one pixel: 178 MW
VIIRS and MODIS detections: 108
Estimated emissions: 21.3 kt of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 19 October 2026 to 22 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 22 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 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 07:04	3 MW	2	N21
23 October at 06:19	10 MW	2	N20
23 October at 06:00	13 MW	6	N
23 October at 04:20	19 MW	1	G19
23 October at 04:05	20 MW	1	G19FRP
23 October at 03:54	12 MW	1	Met12
23 October at 03:50	37 MW	1	Met10
23 October at 03:35	35 MW	1	G19FRP
23 October at 03:30	53 MW	1	G19
23 October at 03:15	137 MW	2	G19FRP
23 October at 03:05	295 MW	4	Met10
23 October at 03:05	231 MW	2	G19FRP
23 October at 03:04	12 MW	1	Met12
23 October at 03:00	175 MW	1	G19
23 October at 02:55	99 MW	2	G19FRP
23 October at 02:54	170 MW	4	Met12
23 October at 02:50	226 MW	3	Met10
23 October at 02:50	196 MW	1	G19
23 October at 02:45	142 MW	2	G19FRP
23 October at 02:44	87 MW	3	Met12
23 October at 02:40	108 MW	1	G19
23 October at 02:35	32 MW	1	G19FRP
23 October at 02:35	189 MW	3	Met10
23 October at 02:34	64 MW	2	Met12
23 October at 02:30	129 MW	1	G19
23 October at 02:21	295 MW	3	Met10
23 October at 02:20	117 MW	1	G19
23 October at 02:15	139 MW	2	G19FRP
23 October at 02:14	162 MW	3	Met12
23 October at 02:10	127 MW	1	G19
23 October at 02:06	76 MW	1	Met10
23 October at 02:04	19 MW	1	Met12
23 October at 01:52	32 MW	2	Terra
23 October at 01:25	20 MW	1	G19FRP
23 October at 01:24	16 MW	1	Met12
23 October at 01:15	20 MW	1	G19FRP
23 October at 01:14	17 MW	1	Met12
23 October at 01:10	22 MW	1	G19
23 October at 00:50	22 MW	1	G19
23 October at 00:45	25 MW	1	G19FRP
23 October at 00:34	14 MW	1	Met12
23 October at 00:30	21 MW	1	G19
23 October at 00:14	15 MW	1	Met12
23 October at 00:04	22 MW	2	Met12
22 October at 18:20	26 MW	2	N21
22 October at 13:34	5 MW	1	Terra
22 October at 08:59	37 MW	3	Aqua
22 October at 08:14	11 MW	1	Met12
22 October at 08:04	12 MW	1	Met12
22 October at 07:54	11 MW	1	Met12
22 October at 07:45	19 MW	1	G19FRP
22 October at 07:44	12 MW	1	Met12
22 October at 06:38	16 MW	5	N20
22 October at 06:19	16 MW	5	N
22 October at 05:42	20 MW	7	N21
22 October at 03:04	11 MW	1	Met12
22 October at 01:14	42 MW	2	Terra
22 October at 01:14	13 MW	1	Met12
22 October at 01:06	67 MW	2	Met10
22 October at 01:04	14 MW	1	Met12
22 October at 00:55	33 MW	1	G19FRP
22 October at 00:51	33 MW	1	Met10
22 October at 00:45	30 MW	1	G19FRP
22 October at 00:40	34 MW	1	G19
22 October at 00:36	61 MW	2	Met10
22 October at 00:35	54 MW	2	G19FRP
22 October at 00:30	37 MW	1	G19
22 October at 00:25	21 MW	1	G19FRP
22 October at 00:21	32 MW	1	Met10
22 October at 00:20	24 MW	1	G19
22 October at 00:15	24 MW	1	G19FRP
22 October at 00:14	26 MW	2	Met12
22 October at 00:10	27 MW	1	G19
22 October at 00:06	33 MW	1	Met10
22 October at 00:05	51 MW	2	G19FRP
22 October at 00:04	52 MW	4	Met12
22 October at 00:00	31 MW	1	G19
21 October at 23:51	76 MW	2	Met10
21 October at 23:50	34 MW	1	G19
21 October at 23:45	65 MW	2	G19FRP
21 October at 23:44	56 MW	2	Met12
21 October at 23:40	82 MW	1	G19
21 October at 23:36	80 MW	2	Met10
21 October at 23:35	30 MW	1	G19FRP
21 October at 23:30	48 MW	1	G19
21 October at 23:25	47 MW	1	G19FRP
21 October at 23:24	36 MW	2	Met12
21 October at 23:21	91 MW	2	Met10
21 October at 23:20	53 MW	1	G19
21 October at 23:15	121 MW	3	G19FRP
21 October at 23:14	63 MW	3	Met12
21 October at 23:10	70 MW	1	G19
21 October at 23:06	169 MW	4	Met10
21 October at 23:05	57 MW	1	G19FRP
21 October at 23:04	121 MW	4	Met12
21 October at 23:00	65 MW	1	G19
21 October at 22:55	90 MW	2	G19FRP
21 October at 22:54	72 MW	3	Met12
21 October at 22:51	114 MW	3	Met10
21 October at 22:50	52 MW	1	G19
21 October at 22:45	78 MW	2	G19FRP
21 October at 22:44	83 MW	4	Met12
21 October at 22:40	51 MW	1	G19
21 October at 22:36	47 MW	1	Met10
21 October at 22:35	75 MW	2	G19FRP
21 October at 22:34	80 MW	4	Met12
21 October at 22:30	48 MW	1	G19
21 October at 22:25	79 MW	2	G19FRP
21 October at 22:24	84 MW	4	Met12
21 October at 22:21	58 MW	1	Met10
21 October at 22:20	52 MW	1	G19
21 October at 22:15	110 MW	3	G19FRP
21 October at 22:14	92 MW	4	Met12
21 October at 22:10	59 MW	1	G19
21 October at 22:05	164 MW	4	G19FRP
21 October at 22:04	115 MW	4	Met12
21 October at 21:55	113 MW	2	G19FRP
21 October at 21:54	164 MW	4	Met12
21 October at 21:51	135 MW	2	Met10
21 October at 21:45	55 MW	1	G19FRP
21 October at 21:44	123 MW	4	Met12
21 October at 21:36	96 MW	1	Met10
21 October at 21:35	238 MW	2	G19FRP
21 October at 21:34	336 MW	5	Met12
21 October at 21:25	353 MW	2	G19FRP
21 October at 21:24	401 MW	4	Met12
21 October at 21:15	96 MW	1	G19FRP
21 October at 21:14	157 MW	4	Met12
21 October at 20:55	225 MW	2	G19FRP
21 October at 20:45	313 MW	3	G19FRP
21 October at 20:44	108 MW	2	Met12
21 October at 20:40	235 MW	2	G19
21 October at 20:36	49 MW	2	Aqua
21 October at 20:35	248 MW	2	G19FRP
21 October at 20:30	157 MW	1	G19
21 October at 20:25	551 MW	4	G19FRP
21 October at 20:24	26 MW	1	Met12
21 October at 20:20	581 MW	3	G19
21 October at 20:15	531 MW	2	G19FRP
21 October at 20:14	539 MW	5	Met12
21 October at 20:10	383 MW	2	G19
21 October at 20:04	85 MW	1	Met12
21 October at 19:55	242 MW	2	G19FRP
21 October at 19:50	275 MW	3	G19
21 October at 19:35	407 MW	2	G19FRP
21 October at 19:30	364 MW	2	G19
21 October at 19:20	54 MW	1	G19
21 October at 19:15	58 MW	1	G19FRP
21 October at 19:15	42 MW	5	N
21 October at 19:10	119 MW	1	G19
21 October at 18:45	78 MW	1	G19FRP
21 October at 18:40	121 MW	2	G19
21 October at 18:39	317 MW	5	N21
21 October at 18:14	54 MW	1	Met12
21 October at 18:00	105 MW	2	G19
21 October at 17:56	54 MW	8	N20
21 October at 17:54	24 MW	1	Met12
21 October at 17:30	46 MW	1	G19
21 October at 17:20	42 MW	1	G19
21 October at 17:14	13 MW	1	Met12
21 October at 17:04	14 MW	1	Met12
21 October at 16:34	35 MW	2	Met12
21 October at 15:20	28 MW	1	G19
21 October at 14:24	11 MW	1	Met12
21 October at 12:55	23 MW	1	G19FRP
21 October at 12:14	11 MW	1	Met12
21 October at 12:04	14 MW	1	Met12
21 October at 11:55	46 MW	2	G19FRP
21 October at 11:54	12 MW	1	Met12
21 October at 11:50	28 MW	1	G19
21 October at 11:45	86 MW	2	G19FRP
21 October at 11:44	35 MW	1	Met12
21 October at 11:40	69 MW	1	G19
21 October at 11:34	123 MW	4	Met12
21 October at 11:24	71 MW	3	Met12
21 October at 11:05	35 MW	1	Met10
21 October at 11:04	17 MW	1	Met12
21 October at 10:55	17 MW	1	G19FRP
21 October at 10:54	25 MW	2	Met12
21 October at 10:45	57 MW	2	G19FRP
21 October at 10:44	21 MW	2	Met12
21 October at 10:40	43 MW	1	G19
21 October at 10:35	35 MW	2	G19FRP
21 October at 10:15	31 MW	1	G19FRP
21 October at 10:10	35 MW	1	G19
21 October at 09:50	32 MW	1	G19
21 October at 06:57	86 MW	9	N20
21 October at 06:54	72 MW	3	Met12
21 October at 06:50	54 MW	1	G19
21 October at 06:38	84 MW	15	N
21 October at 06:02	48 MW	8	N21
21 October at 05:40	122 MW	1	G19
21 October at 04:24	34 MW	1	Met12
21 October at 04:04	80 MW	4	Met12
21 October at 04:00	53 MW	1	G19
21 October at 03:54	30 MW	1	Met12
21 October at 03:50	48 MW	1	G19
21 October at 03:44	33 MW	1	Met12
21 October at 03:40	51 MW	1	G19
21 October at 03:34	100 MW	3	Met12
21 October at 03:30	125 MW	1	G19
21 October at 03:24	102 MW	3	Met12
21 October at 03:20	74 MW	1	G19
21 October at 03:14	64 MW	1	Met12
21 October at 03:10	98 MW	1	G19
21 October at 03:00	96 MW	1	G19
21 October at 02:54	119 MW	3	Met12
21 October at 02:50	95 MW	1	G19
21 October at 02:44	29 MW	1	Met12
21 October at 02:40	76 MW	1	G19
21 October at 02:34	59 MW	1	Met12
21 October at 02:24	270 MW	3	Met12
21 October at 02:20	351 MW	2	G19
21 October at 02:14	77 MW	2	Met12
21 October at 02:11	395 MW	8	Terra
21 October at 02:10	112 MW	1	G19
21 October at 02:04	219 MW	2	Met12
20 October at 21:50	133 MW	1	G19
20 October at 21:40	520 MW	2	G19
20 October at 21:30	754 MW	5	G19
20 October at 21:20	433 MW	4	G19
20 October at 21:10	242 MW	2	G19
20 October at 21:00	60 MW	1	G19
20 October at 20:50	38 MW	1	G19
20 October at 18:13	12 MW	1	N20
20 October at 17:56	7 MW	2	N
20 October at 07:16	2 MW	2	N20
20 October at 06:19	3 MW	2	N21
20 October at 01:33	31 MW	4	Terra

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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