Fire near Amazonas (BR)

3.73°S, 58.89°W · first detected on 23 September at 06:25

What the satellites measured

This fire was tracked from 23 September at 06:25 to 22 October at 18:58, that is at least 30 days: the clustering window stops there, and the fire or heat source may be older, through 968 satellite detections. The detected extent reaches 9,190 ha.

Detected extent: 9,190 ha
Cumulative power: 8,823 MW
Peak power, one pixel: 251 MW
VIIRS and MODIS detections: 968
Estimated emissions: 25.6 kt of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 5 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 30 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 20:25	27 MW	1	G19FRP
21 October at 21:14	17 MW	1	Met12
20 October at 07:16	1 MW	1	N20
19 October at 07:36	14 MW	11	N20
19 October at 07:16	25 MW	16	N
18 October at 07:33	14 MW	15	N
17 October at 19:56	126 MW	16	N21
17 October at 08:14	2 MW	1	N20
17 October at 07:55	7 MW	4	N
17 October at 07:16	25 MW	18	N21
17 October at 06:34	7 MW	3	N20
17 October at 02:54	17 MW	1	Terra
16 October at 14:36	6 MW	1	Terra
16 October at 07:36	14 MW	8	N21
16 October at 06:53	8 MW	6	N20
16 October at 02:16	26 MW	1	Terra
15 October at 21:45	94 MW	5	Aqua
15 October at 19:49	10 MW	1	N20
15 October at 19:30	185 MW	24	N
14 October at 20:09	2 MW	1	N20
14 October at 19:47	18 MW	2	N
12 October at 21:30	104 MW	8	Aqua
12 October at 19:07	121 MW	10	N20
12 October at 07:48	2 MW	1	N
12 October at 07:10	11 MW	10	N21
11 October at 20:09	119 MW	7	N21
11 October at 19:24	194 MW	28	N20
11 October at 19:05	95 MW	11	N
11 October at 08:05	5 MW	5	N
11 October at 07:29	27 MW	16	N21
11 October at 02:18	10 MW	1	Terra
10 October at 21:51	132 MW	10	Aqua
10 October at 19:43	280 MW	33	N20
10 October at 19:24	188 MW	15	N
10 October at 18:45	138 MW	20	N21
10 October at 07:48	7 MW	3	N21
10 October at 07:04	5 MW	4	N20
9 October at 20:02	353 MW	39	N20
9 October at 19:41	511 MW	61	N
9 October at 19:07	160 MW	15	N21
9 October at 08:08	2 MW	1	N21
9 October at 07:23	19 MW	9	N20
9 October at 07:04	8 MW	3	N
9 October at 06:25	8 MW	2	N21
9 October at 02:37	41 MW	5	Terra
8 October at 20:19	33 MW	2	N20
8 October at 20:02	373 MW	38	N
8 October at 19:24	534 MW	54	N21
8 October at 18:39	169 MW	13	N20
8 October at 14:19	9 MW	1	Terra
8 October at 07:42	19 MW	12	N20
8 October at 07:23	17 MW	15	N
8 October at 06:46	11 MW	8	N21
7 October at 19:43	296 MW	24	N21
7 October at 18:58	319 MW	19	N20
7 October at 07:59	3 MW	3	N20
7 October at 07:40	10 MW	5	N
7 October at 07:04	13 MW	5	N21
6 October at 20:02	65 MW	3	N21
6 October at 19:17	6 MW	1	N20
6 October at 18:58	30 MW	6	N
6 October at 14:38	79 MW	5	Terra
6 October at 07:59	13 MW	5	N
6 October at 07:24	21 MW	10	N21
6 October at 06:40	22 MW	7	N20
6 October at 02:18	86 MW	4	Terra
5 October at 22:00	40 MW	2	Aqua
5 October at 19:34	322 MW	11	N20
5 October at 19:16	348 MW	8	N
5 October at 18:39	30 MW	5	N21
4 October at 19:56	49 MW	4	N20
4 October at 19:37	100 MW	8	N
4 October at 19:00	71 MW	6	N21
3 October at 20:13	60 MW	4	N20
3 October at 19:54	56 MW	4	N
3 October at 19:17	19 MW	3	N21
1 October at 19:56	80 MW	6	N21
1 October at 19:11	22 MW	3	N20
1 October at 07:55	3 MW	3	N
1 October at 07:16	5 MW	4	N21
30 September at 22:04	19 MW	1	Aqua
30 September at 19:30	34 MW	5	N20
30 September at 19:09	18 MW	2	N
29 September at 19:30	37 MW	3	N
28 September at 20:09	5 MW	1	N20
28 September at 19:47	99 MW	5	N
24 September at 19:41	186 MW	15	N20
24 September at 19:24	61 MW	4	N
24 September at 18:45	148 MW	9	N21
24 September at 08:25	11 MW	4	N
24 September at 07:48	32 MW	7	N21
24 September at 07:04	35 MW	16	N20
24 September at 06:44	6 MW	3	N
24 September at 02:39	57 MW	3	Terra
23 September at 20:02	499 MW	24	N20
23 September at 19:41	645 MW	26	N
23 September at 19:07	268 MW	12	N21

8 other fires near Amazonas (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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