Fire near Maranhão (BR)

5.57°S, 43.98°W · first detected on 14 October at 19:09

What the satellites measured

This fire was tracked from 14 October at 19:09 to 23 October at 05:23, that is 8 days, through 32 satellite detections. The detected extent reaches 1,526 ha.

Detected extent: 1,526 ha
Cumulative power: 462 MW
Peak power, one pixel: 85 MW
VIIRS and MODIS detections: 32
Estimated emissions: 3.8 kt of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 14 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 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
23 October at 06:19	5 MW	2	N20
23 October at 05:23	13 MW	3	N21
23 October at 01:52	32 MW	2	Terra
23 October at 01:14	21 MW	2	Met12
23 October at 00:55	22 MW	1	G19FRP
23 October at 00:50	27 MW	1	G19
23 October at 00:45	21 MW	1	G19FRP
23 October at 00:34	12 MW	1	Met12
23 October at 00:30	32 MW	1	G19
23 October at 00:10	36 MW	1	G19
23 October at 00:00	40 MW	1	G19
22 October at 23:54	12 MW	1	Met12
22 October at 23:44	13 MW	1	Met12
22 October at 23:34	11 MW	1	Met12
22 October at 23:30	77 MW	1	G19
22 October at 23:25	107 MW	2	G19FRP
22 October at 23:24	73 MW	4	Met12
22 October at 23:21	120 MW	2	Met10
22 October at 23:20	82 MW	1	G19
22 October at 23:15	163 MW	3	G19FRP
22 October at 23:14	136 MW	2	Met12
22 October at 23:10	145 MW	2	G19
22 October at 23:06	37 MW	1	Met10
22 October at 23:05	42 MW	1	G19FRP
22 October at 23:04	118 MW	3	Met12
22 October at 23:00	120 MW	1	G19
22 October at 22:55	179 MW	4	G19FRP
22 October at 22:54	184 MW	10	Met12
22 October at 22:51	51 MW	1	Met10
22 October at 22:50	121 MW	2	G19
22 October at 22:45	212 MW	4	G19FRP
22 October at 22:44	191 MW	6	Met12
22 October at 22:34	46 MW	3	Met12
22 October at 22:24	46 MW	3	Met12
22 October at 22:21	234 MW	3	Met10
22 October at 22:14	534 MW	8	Met12
22 October at 22:04	31 MW	2	Met12
22 October at 21:14	63 MW	3	Met12
22 October at 20:34	24 MW	1	Met12
22 October at 18:58	11 MW	2	N
21 October at 23:55	35 MW	1	G19FRP
21 October at 23:54	33 MW	2	Met12
21 October at 23:50	64 MW	1	G19
21 October at 23:36	34 MW	1	Met10
21 October at 23:35	28 MW	1	G19FRP
21 October at 23:34	25 MW	2	Met12
21 October at 23:30	35 MW	1	G19
21 October at 23:24	27 MW	2	Met12
21 October at 23:21	40 MW	1	Met10
21 October at 23:20	28 MW	1	G19
21 October at 23:15	85 MW	2	G19FRP
21 October at 23:14	160 MW	6	Met12
21 October at 23:10	106 MW	2	G19
21 October at 23:06	637 MW	7	Met10
21 October at 23:05	357 MW	3	G19FRP
21 October at 23:04	340 MW	8	Met12
21 October at 23:00	465 MW	3	G19
21 October at 22:55	377 MW	6	G19FRP
21 October at 22:54	386 MW	12	Met12
21 October at 22:51	1,037 MW	10	Met10
21 October at 22:50	316 MW	2	G19
21 October at 22:45	305 MW	4	G19FRP
21 October at 22:44	276 MW	10	Met12
21 October at 22:40	253 MW	2	G19
21 October at 22:36	418 MW	4	Met10
21 October at 22:35	310 MW	4	G19FRP
21 October at 22:34	290 MW	6	Met12
21 October at 22:30	295 MW	2	G19
21 October at 22:25	741 MW	5	G19FRP
21 October at 22:24	50 MW	2	Met12
21 October at 22:21	1,273 MW	4	Met10
21 October at 22:20	849 MW	4	G19
21 October at 22:15	2,177 MW	8	G19FRP
21 October at 22:14	198 MW	1	Met12
21 October at 22:10	1,000 MW	3	G19
21 October at 22:06	1,617 MW	4	Met10
21 October at 22:05	2,036 MW	7	G19FRP
21 October at 22:04	284 MW	3	Met12
21 October at 22:00	2,507 MW	7	G19
21 October at 21:55	446 MW	4	G19FRP
21 October at 21:54	326 MW	6	Met12
21 October at 21:51	270 MW	4	Met10
21 October at 21:50	383 MW	2	G19
21 October at 21:45	44 MW	1	G19FRP
21 October at 21:44	46 MW	2	Met12
21 October at 21:40	51 MW	1	G19
21 October at 21:34	10 MW	1	Met12
21 October at 19:24	12 MW	1	Met12
21 October at 18:39	17 MW	1	N21
21 October at 17:34	13 MW	1	Met12
21 October at 15:50	65 MW	1	G19
21 October at 15:10	83 MW	1	G19
21 October at 15:00	59 MW	1	G19
20 October at 22:04	18 MW	1	Met12
20 October at 21:40	44 MW	1	G19
20 October at 20:40	87 MW	1	G19
20 October at 19:30	103 MW	1	G19
20 October at 18:30	66 MW	1	G19
20 October at 18:20	157 MW	1	G19
20 October at 18:10	89 MW	1	G19
20 October at 15:40	80 MW	1	G19
20 October at 15:30	62 MW	1	G19
20 October at 15:20	213 MW	3	G19
20 October at 15:10	201 MW	3	G19
20 October at 15:00	137 MW	2	G19
20 October at 13:55	28 MW	1	Terra
20 October at 06:19	4 MW	3	N21
20 October at 05:36	3 MW	1	N20
20 October at 03:04	11 MW	1	Met12
20 October at 02:24	11 MW	1	Met12
20 October at 02:20	23 MW	1	G19
20 October at 02:10	22 MW	1	G19
20 October at 02:05	25 MW	1	G19FRP
20 October at 02:05	29 MW	1	Met10
20 October at 02:04	14 MW	1	Met12
20 October at 02:00	27 MW	1	G19
20 October at 01:33	105 MW	5	Terra
19 October at 21:00	143 MW	3	Aqua
18 October at 06:14	2 MW	1	N20
18 October at 01:54	30 MW	2	Terra
16 October at 17:50	29 MW	2	N20
15 October at 18:07	7 MW	1	N20
15 October at 06:14	2 MW	3	N21
15 October at 01:35	5 MW	1	Terra
14 October at 19:09	71 MW	1	N21

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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