Burned area
satellite only5,380ha
Union of 2 GWIS (Copernicus) perimeters: overlapping areas count once.
- Source
- GWIS (Copernicus)
- Date
- 14 Mar 2025 – 4 Apr 2025
+− cross-check
No official record is matched to this page to compare it with.
TH · Thailand · –
Sop Moei fire, 14 March 2025 สบเมย · Sop Moei, Mae Sariang
Out · last detection 4 Apr 2025, 19:26 UTC
The fire started on 14 March 2025 in Sop Moei, Thailand, and satellites saw it burning for 22 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,380 hectares from heat detections, spread across 2 municipalities.
It is the 23th largest in Mae Hong Son Province since 2016 (of 361 with a page). Number 8 in Thailand in 2025, of 173.
The power measured by the satellite is low (14.1 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.
Use this data
Compare with…
Use this data
Fire page data · version 2026-11-05matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only22days
14 Mar 2025 to 4 Apr 2025: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 4 Apr 2025, 19:26 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only14 Mar 2025
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 14 Mar 2025
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only215
VIIRS detections at 375 m. Most intense hotspot: 14 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 14 Mar 2025 – 4 Apr 2025
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only69MW
Total radiative power on 31 March 2025; hotspots that day: 32.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 31 Mar 2025
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model24.1FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 2.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 14 Mar 2025, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model37.8°C · 30% RH
High of 37.8 °C and minimum humidity of 30% on 30 March 2025; gusts of 37 km/h on 26 March 2025.
- Source
- weather model at the fire’s grid cell
- Date
- 14 Mar 2025 – 4 Apr 2025
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
Living inside
model≈ 250people
Estimated residents inside the perimeter and 1.8 ha of built-up area (100 m grid, epoch 2025).
- Source
- GHSL R2023A · JRC
- Date
- calculated on 24 October 2026
+− cross-check
This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
logArea: 5,505 → 5,380 ha.
-
logLast day with fire: 3 April 2025 → 4 April 2025.
-
logStart date: 17 March 2025 → 14 March 2025.
-
· reconstructed GHSLPopulation and built-up area computed
Area logged each night
Move the slider to see which area the page published each day.
Versioned permanent link
https://worldfires.org/en/fire/sop-moei-2025-03-2?v=2026-11-05A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire sop-moei-2025-03-2.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-03-14 | 3 | 6 | 35.9 | 20.1 | 33 | 8.7 | 28.4 | 0 | 24.1 | alto | 1 |
| 2025-03-15 | 5 | 11 | 36.5 | 20.3 | 37 | 9.4 | 27.7 | 0 | 23.4 | alto | 1 |
| 2025-03-16 | 0 | 0 | 35.9 | 21.5 | 41 | 10.3 | 29.9 | 0 | 23.5 | alto | 1 |
| 2025-03-17 | 6 | 7 | 37 | 21.8 | 35 | 11.4 | 33.5 | 0 | 27.8 | alto | 1 |
| 2025-03-18 | 2 | 4 | 36.1 | 21.9 | 40 | 11.4 | 32.8 | 0 | 28.1 | alto | 1 |
| 2025-03-19 | 1 | 6 | 33.2 | 23.2 | 44 | 7.7 | 27.4 | 0.3 | 24 | alto | 1 |
| 2025-03-20 | 21 | 29 | 34.2 | 21.4 | 40 | 7.2 | 23.4 | 0 | 23.1 | alto | 1 |
| 2025-03-21 | 17 | 25 | 33.8 | 21 | 45 | 7.2 | 20.9 | 0.1 | 22.6 | alto | 1 |
| 2025-03-22 | 6 | 5 | 35.5 | 21 | 40 | 6.3 | 18.7 | 0 | 23.7 | alto | 1 |
| 2025-03-23 | 14 | 37 | 34.6 | 22 | 48 | 8.8 | 24.8 | 0.2 | 24.5 | alto | 1 |
| 2025-03-24 | 16 | 51 | 36.3 | 21.8 | 38 | 10.5 | 33.1 | 0.2 | 26.3 | alto | 1 |
| 2025-03-25 | 22 | 56 | 36.3 | 21.3 | 31 | 12.8 | 37.1 | 0 | 30.1 | alto | 1 |
| 2025-03-26 | 9 | 13 | 35.7 | 20.3 | 38 | 12.5 | 37.4 | 0 | 30.8 | alto | 1 |
| 2025-03-27 | 4 | 9 | 35.4 | 20.4 | 35 | 11.8 | 35.3 | 0 | 32.5 | alto | 1 |
| 2025-03-28 | 0 | 0 | 34.2 | 18.4 | 37 | 11.8 | 29.9 | 0 | 28.7 | alto | 1 |
| 2025-03-29 | 15 | 62 | 36.5 | 20.8 | 29 | 11.6 | 31.7 | 0 | 29.1 | alto | 1 |
| 2025-03-30 | 19 | 34 | 37.8 | 20.8 | 30 | 11 | 32 | 0 | 35.3 | alto | 1 |
| 2025-03-31 | 32 | 69 | 34.9 | 23.4 | 42 | 10.1 | 33.5 | 0.1 | 34.3 | alto | 1 |
| 2025-04-01 | 15 | 47 | 34.6 | 23 | 43 | 8.9 | 27.7 | 0.5 | 30.5 | alto | 1 |
| 2025-04-02 | 5 | 38 | 35.7 | 22.5 | 40 | 8.7 | 21.6 | 0.1 | 28.9 | alto | 1 |
| 2025-04-03 | 2 | 18 | 35.1 | 23.8 | 48 | 8 | 22 | 3.7 | 25.4 | alto | 1 |
| 2025-04-04 | 1 | 2 | 34.7 | 23.7 | 53 | 9.1 | 29.9 | 1.5 | 8.6 | bajo | 1 |
| 2025-04-05 | 0 | 0 | 32.2 | 23.7 | 57 | 9.6 | 33.8 | 0.1 | 7.6 | bajo | 0 |
| 2025-04-06 | 0 | 0 | 31.3 | 22.8 | 60 | 8.7 | 29.5 | 0 | 13.9 | moderado | 0 |
| 2025-04-07 | 0 | 0 | 33.2 | 21.1 | 51 | 6.5 | 23.8 | 0.3 | 19 | moderado | 0 |
| 2025-04-08 | 0 | 0 | 35.8 | 22.1 | 43 | 4.4 | 20.2 | 0.4 | 20.3 | moderado | 0 |
| 2025-04-09 | 0 | 0 | 34.4 | 22.7 | 44 | 8 | 31 | 0.7 | 22.7 | alto | 0 |
| 2025-04-10 | 0 | 0 | 33.4 | 23.1 | 53 | 11.5 | 38.9 | 2.1 | 25.2 | alto | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: GWIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 5,380ha
- GWIS perimeter (Copernicus)
- Duration
- 22days
- 14 Mar 2025 – 4 Apr 2025
- Municipalities hit
- 2
- districts
- Started on
- 14 Mar
- 2025
- Heat detections
- 215
- in a single hotspot: 14 MW
- Danger at start
- 24
- High · FWI index
- Average daily power
- 26MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
14 Mar4 Apr
4 Apr 2025
How it evolved, day by day
14 Mar
19 Mar
23 Mar
27 Mar
31 Mar
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
38°high
37km/h · peak gust
29%lowest humidity
It had gone 2 days without rain (1 mm or more) when it started. Rain came after the fire: 2.1 mm on 10 Apr.
This area had burned before
100% of the perimeter overlaps earlier fires recorded since 2016: 1,626 ha in 2016, 1,900 ha in 2017, 1,193 ha in 2018, 4,154 ha in 2019, 1,654 ha in 2020, 778 ha in 2021, 403 ha in 2022, 1,684 ha in 2023, 2,794 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 5,393 ha that had burned before.
- 2,509 ha Sop Moei fire, March 2019 4,001 ha in total; the hectares shown are those it shares with this fire
- 1,322 ha Sop Moei fire, March 2024 1,486 ha in total; the hectares shown are those it shares with this fire
- 1,123 ha Sop Moei fire, March 2019 1,209 ha in total; the hectares shown are those it shares with this fire
- 517 ha Sop Moei fire, March 2024 1,273 ha in total; the hectares shown are those it shares with this fire
- 109 ha Mae Sariang fire, March 2020 2,015 ha in total; the hectares shown are those it shares with this fire
- 31 ha Mae Sariang fire, March 2024 1,129 ha in total; the hectares shown are those it shares with this fire
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Bangkok boundary: geoBoundaries · OpenStreetMap, Wambacher · © OpenStreetMap contributors (ODbL 1.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
4,623 ha reached on 17 Mar3.2 %
-
Mae Sariang แม่สะเรียง914 ha reached on 14 Mar0.4 %
Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.
People and buildings inside the perimeter
GHSL 2025Built-up area1.8 ha
Residents≈ 250
Inside the perimeter there were about 1.8 hectares of built-up land and about 250 residents (GHSL 2025, satellite-based estimate).
This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.
Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu
The weather day by day
ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.
Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 14 Mar | 35.9 °C | 33 % | 28 km/h | 0.0 mm | High 24 |
| 15 Mar | 36.5 °C | 37 % | 28 km/h | 0.0 mm | High 23 |
| 16 Mar | 35.9 °C | 41 % | 30 km/h | 0.0 mm | High 24 |
| 17 Mar | 37.0 °C | 35 % | 34 km/h | 0.0 mm | High 28 |
| 18 Mar | 36.1 °C | 40 % | 33 km/h | 0.0 mm | High 28 |
| 19 Mar | 33.2 °C | 44 % | 27 km/h | 0.3 mm | High 24 |
| 20 Mar | 34.2 °C | 40 % | 23 km/h | 0.0 mm | High 23 |
| 21 Mar | 33.8 °C | 45 % | 21 km/h | 0.1 mm | High 23 |
| 22 Mar | 35.5 °C | 40 % | 19 km/h | 0.0 mm | High 24 |
| 23 Mar | 34.6 °C | 48 % | 25 km/h | 0.2 mm | High 24 |
| 24 Mar | 36.3 °C | 38 % | 33 km/h | 0.2 mm | High 26 |
| 25 Mar | 36.3 °C | 31 % | 37 km/h | 0.0 mm | High 30 |
| 26 Mar | 35.7 °C | 38 % | 37 km/h | 0.0 mm | High 31 |
| 27 Mar | 35.4 °C | 35 % | 35 km/h | 0.0 mm | High 32 |
| 28 Mar | 34.2 °C | 37 % | 30 km/h | 0.0 mm | High 29 |
| 29 Mar | 36.5 °C | 29 % | 32 km/h | 0.0 mm | High 29 |
| 30 Mar | 37.8 °C | 30 % | 32 km/h | 0.0 mm | High 35 |
| 31 Mar | 34.9 °C | 42 % | 34 km/h | 0.1 mm | High 34 |
| 1 Apr | 34.6 °C | 43 % | 28 km/h | 0.5 mm | High 30 |
| 2 Apr | 35.7 °C | 40 % | 22 km/h | 0.1 mm | High 29 |
| 3 Apr | 35.1 °C | 48 % | 22 km/h | 3.7 mm | High 25 |
| 4 Apr | 34.7 °C | 53 % | 30 km/h | 1.5 mm | Low 9 |
| 5 Apr after | 32.2 °C | 57 % | 34 km/h | 0.1 mm | Low 8 |
| 6 Apr after | 31.3 °C | 60 % | 30 km/h | 0.0 mm | Moderate 14 |
| 7 Apr after | 33.2 °C | 51 % | 24 km/h | 0.3 mm | Moderate 19 |
| 8 Apr after | 35.8 °C | 43 % | 20 km/h | 0.4 mm | Moderate 20 |
| 9 Apr after | 34.4 °C | 44 % | 31 km/h | 0.7 mm | High 23 |
| 10 Apr after | 33.4 °C | 53 % | 39 km/h | 2.1 mm | High 25 |
Its twins: fires that started in the same weather
It started with an FWI of 24.1, a minimum humidity of 33% and 2 days without rain. Fires in the area that started in weather like this since 2016: 51.
FWI at the start
24.1
Minimum humidity
33 %
Days without rain
2
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Sop Moei fire, 14 March 2025
5,380 ha
22 days
FWI 24.1
Min. humidity 33 %
Li fire, February 2023
1,264 ha
14 days
FWI 24.9
Min. humidity 33 %
103 km away, in 2023
First rain (1 mm or more) after it ended: 10.5 mm on 13 Mar.
Khun Yuam fire, March 2023
1,352 ha
16 days
FWI 23.0
Min. humidity 33 %
64 km away, in 2023
First rain (1 mm or more) after it ended: none in the following ten days.
Li fire, February 2021
2,851 ha
20 days
FWI 23.8
Min. humidity 32 %
100 km away, in 2021
First rain (1 mm or more) after it ended: none in the following ten days.
Samoeng fire, April 2016
2,106 ha
18 days
FWI 23.9
Min. humidity 32 %
130 km away, in 2016
First rain (1 mm or more) after it ended: 5.6 mm on 29 Apr.
Mae Wang fire, March 2023
3,576 ha
8 days
FWI 20.8
Min. humidity 33 %
109 km away, in 2023
First rain (1 mm or more) after it ended: none in the following ten days.
What happened to them
- 12 days
- median duration
- 1,945 ha
- median area
- 100 %
- went past 1,000 ha
- 4.6 mm
- rain at the end (median; 23 of 51 had it)
It was 2.8 times larger than the median of its twins and lasted 22 days, against 12 days.
Only 2 of its 51 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 28 of 51, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 4.6 mm.
This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it
How it ended
2.1 mmfirst rain
10 Apr6 days after it ended
37km/h · max. gust
It was considered over on 4 Apr, and on 10 Apr 2.1 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 23 of 51, with a median of 4.6 mm.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
How a twin is chosen
- Same area: fires that have already ended, less than 250 km from this one, since 2016.
- Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
- Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
- Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
- They are sorted by similarity, and the outlines of the first five are drawn.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 7 Mar 2025
After · 11 Apr 2025
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.
The smoke
CAMS · CopernicusOn 29 March 2025 the air beside the fire reached 162 µg/m³ of PM2.5. That day averaged 91: 6.0 times the WHO daily guideline (15).
PM2.5 peak162 µg/m³
Days over the guideline23 days
PM10175 µg/m³
Optical depth1.82
WHO 15
15 Mar20 Mar25 Mar30 Mar4 Apr
Good
Fair
Moderate
Poor
Very poor
Extremely poor
Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.
Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)
Detections table · 215Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV
Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 12,437 haSop Moei สบเมย20 March 2019 · 34 days · 18 km away
- 8,248 haMae Sariang แม่สะเรียง20 February 2021 · 20 days · 18 km away
- 8,462 haMae Sariang แม่สะเรียง20 March 2023 · 18 days · 21 km away
- 54,550 haSop Moei สบเมย21 March 2026 · 35 days · 23 km away
- 157,976 haMae La Noi แม่ลาน้อย18 March 2026 · 41 days · 28 km away
- 18,375 haMae Sariang แม่สะเรียง5 March 2017 · 28 days · 32 km away
Frequently asked questions
- How long did the Sop Moei fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 14 March 2025 to 4 April 2025 (22 days). The perimeter dates it from 17 March 2025 to 3 April 2025.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,380 hectares (53.8 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Sop Moei (4,623 ha, 3.2 %); Mae Sariang (914 ha, 0.4 %).
- What was the weather like?
- During the fire the temperature reached 37.8 °C, humidity dropped to 29 % and gusts hit 37 km/h. The fire danger index (FWI) reached 35, class High.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Thailand (geoBoundaries). It is not an official report.
- How did the fires that started in similar weather in this area end?
- Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 51. Their median duration was 12 days and their median area 1,945 ha; 100 % went past 1,000 ha. Only 2 of its 51 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 28 of 51, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 4.6 mm.
Where to verify it
A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.
Emergency number: 199 · 191 · Emergency number and official warnings
Satellite cross-check
History of this page · 3 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Area: 5,505 → 5,380 ha.
- Last day with fire: 3 April 2025 → 4 April 2025.
- Start date: 17 March 2025 → 14 March 2025.
RSS Changes to this page With cross-checks and a citable version
Does something look wrong on this page?
This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.
Report an error
How we know this
- Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 2 polygons grouped in this page.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 17 March 2025 to 3 April 2025. 215 Suomi-NPP VIIRS detections on those dates.
- We have not matched this page with any official record.
- Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
- Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.
Where this data comes from
The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM2 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.