Burned area
satellite only12,746ha
Union of 3 GWIS (Copernicus) perimeters: overlapping areas count once.
- Source
- GWIS (Copernicus)
- Date
- 27 Mar 2017 – 1 May 2017
+− cross-check
No official record is matched to this page to compare it with.
MX · Mexico · –
Acapulco de Juárez fire, 27 March 2017 Acapulco de Juárez, Chilpancingo de los Bravo, Coyuca de Benítez
Out · last detection 2 May 2017, 19:48 UTC
The fire started on 27 March 2017 in Acapulco de Juárez, Mexico, and satellites saw it burning for 36 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 12,746 hectares from heat detections, spread across 3 municipalities.
It is the 19th largest in Guerrero since 2016 (of 582 with a page). Number 13 in Mexico in 2017, of 374.
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 only36days
27 Mar 2017 to 1 May 2017: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 2 May 2017, 19:48 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 only27 Mar 2017
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 27 Mar 2017
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only916
VIIRS detections at 375 m. Most intense hotspot: 71 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 27 Mar 2017 – 1 May 2017
+− 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 only822MW
Total radiative power on 24 April 2017; hotspots that day: 80.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 24 Apr 2017
+− 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
model5.2FWI · low
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 0.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 27 Mar 2017, 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
model33.5°C · 22% RH
High of 33.5 °C and minimum humidity of 22% on 7 April 2017; gusts of 49 km/h on 24 April 2017.
- Source
- weather model at the fire’s grid cell
- Date
- 27 Mar 2017 – 1 May 2017
- 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≈ 300people
Estimated residents inside the perimeter and 2.6 ha of built-up area (100 m grid, epoch 2015).
- 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
-
logArea: 13,623 → 12,746 ha.
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed GHSLPopulation and built-up area computed
What was saved on 5 November 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 12,746 ha
- Dates
- 27 Mar 2017 – 1 May 2017
- Name
- Acapulco de Juárez
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/acapulco-de-juarez-2017-03?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 acapulco-de-juarez-2017-03.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017-03-27 | 5 | 5 | 29.7 | 17.6 | 53 | 9.2 | 36 | 2.3 | 5.2 | bajo | 1 |
| 2017-03-28 | 6 | 24 | 29.3 | 18.9 | 48 | 10.2 | 38.2 | 0.6 | 11.9 | moderado | 1 |
| 2017-03-29 | 9 | 55 | 30.5 | 18.2 | 39 | 10.1 | 38.5 | 0 | 19 | moderado | 1 |
| 2017-03-30 | 8 | 21 | 29 | 17.9 | 44 | 10.4 | 38.5 | 0 | 19.5 | moderado | 1 |
| 2017-03-31 | 1 | 16 | 29.1 | 17.3 | 39 | 11.1 | 40.3 | 0 | 21.1 | moderado | 1 |
| 2017-04-01 | 5 | 15 | 31 | 15.1 | 22 | 11.1 | 40.3 | 0 | 29.3 | alto | 1 |
| 2017-04-02 | 7 | 31 | 30.7 | 14.9 | 27 | 11.4 | 41 | 0 | 30.1 | alto | 1 |
| 2017-04-03 | 13 | 43 | 30.4 | 15.4 | 35 | 9.9 | 37.8 | 0 | 27.8 | alto | 1 |
| 2017-04-04 | 15 | 67 | 30.8 | 15.2 | 40 | 10.5 | 40.7 | 0.1 | 26.4 | alto | 1 |
| 2017-04-05 | 49 | 376 | 31.6 | 17 | 31 | 11.5 | 42.5 | 0 | 27.5 | alto | 1 |
| 2017-04-06 | 104 | 560 | 32.1 | 16 | 17 | 12.8 | 43.9 | 0 | 36.6 | alto | 1 |
| 2017-04-07 | 104 | 544 | 33.5 | 16.9 | 22 | 12.9 | 46.8 | 0 | 37.2 | alto | 1 |
| 2017-04-08 | 36 | 74 | 32.1 | 18.1 | 28 | 11.6 | 43.9 | 0 | 35.2 | alto | 1 |
| 2017-04-09 | 21 | 217 | 30.8 | 17.6 | 35 | 11 | 44.6 | 0 | 30.9 | alto | 1 |
| 2017-04-10 | 44 | 183 | 30.5 | 17.8 | 35 | 11 | 39.6 | 0 | 30.3 | alto | 1 |
| 2017-04-11 | 21 | 37 | 33 | 17.2 | 25 | 11.7 | 40 | 0 | 32.9 | alto | 1 |
| 2017-04-12 | 10 | 21 | 30.6 | 16.8 | 32 | 12.6 | 45.4 | 0 | 33.5 | alto | 1 |
| 2017-04-13 | 17 | 166 | 31.2 | 16.2 | 28 | 10.7 | 41.8 | 0.3 | 32.3 | alto | 1 |
| 2017-04-14 | 18 | 91 | 31.9 | 17.4 | 29 | 9.7 | 40 | 0.1 | 31.9 | alto | 1 |
| 2017-04-15 | 27 | 111 | 31.6 | 17.7 | 28 | 10.8 | 40 | 0.4 | 33.1 | alto | 1 |
| 2017-04-16 | 27 | 216 | 31.1 | 18.3 | 30 | 11.3 | 45.4 | 0.6 | 29.3 | alto | 1 |
| 2017-04-17 | 22 | 254 | 30.4 | 16.4 | 27 | 11.9 | 47.2 | 0.2 | 31.5 | alto | 1 |
| 2017-04-18 | 58 | 436 | 30.9 | 16.5 | 20 | 11.2 | 46.8 | 0.3 | 35.4 | alto | 1 |
| 2017-04-19 | 42 | 223 | 30.2 | 14.9 | 16 | 12.1 | 47.5 | 0.1 | 39.1 | muy_alto | 1 |
| 2017-04-20 | 30 | 143 | 30.2 | 14.6 | 23 | 12.6 | 42.8 | 0.1 | 39.9 | muy_alto | 1 |
| 2017-04-21 | 11 | 53 | 30.2 | 15.6 | 22 | 10.9 | 39.6 | 0 | 38.6 | muy_alto | 1 |
| 2017-04-22 | 7 | 75 | 30.5 | 15.2 | 26 | 10.9 | 40.3 | 0 | 37.4 | alto | 1 |
| 2017-04-23 | 25 | 102 | 30.6 | 15.5 | 22 | 12.3 | 46.4 | 0 | 39 | muy_alto | 1 |
| 2017-04-24 | 80 | 822 | 30.4 | 16.3 | 34 | 13.5 | 48.6 | 0 | 35.5 | alto | 1 |
| 2017-04-25 | 48 | 243 | 30.5 | 16.7 | 29 | 11.7 | 41.8 | 0 | 34.2 | alto | 1 |
| 2017-04-26 | 31 | 77 | 29.5 | 18.3 | 40 | 11.5 | 41.4 | 0 | 30.2 | alto | 1 |
| 2017-04-27 | 8 | 90 | 29.7 | 17 | 45 | 10.1 | 38.5 | 0 | 26.7 | alto | 1 |
| 2017-04-28 | 4 | 11 | 30 | 17.6 | 47 | 10.7 | 40.7 | 0 | 26.1 | alto | 1 |
| 2017-04-29 | 0 | 0 | 29.8 | 18.8 | 41 | 9.9 | 37.1 | 0 | 25.7 | alto | 1 |
| 2017-04-30 | 0 | 0 | 31 | 17 | 42 | 10.9 | 42.5 | 0 | 26.6 | alto | 1 |
| 2017-05-01 | 2 | 27 | 31.3 | 17.3 | 38 | 11.6 | 42.5 | 0 | 27.2 | alto | 1 |
| 2017-05-02 | 1 | 8 | 31.5 | 18.2 | 37 | 11.6 | 43.9 | 0 | 27.7 | alto | 0 |
| 2017-05-03 | 0 | 0 | 31.2 | 18.4 | 40 | 10.9 | 41.4 | 0.2 | 27.4 | alto | 0 |
| 2017-05-04 | 0 | 0 | 31.5 | 18.4 | 42 | 10.8 | 39.6 | 5.8 | 6.3 | bajo | 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
- 12,746ha
- GWIS perimeter (Copernicus)
- Duration
- 36days
- 27 Mar 2017 – 1 May 2017
- Municipalities hit
- 3
- municipalities
- Started on
- 27 Mar
- 2017
- Heat detections
- 916
- in a single hotspot: 71 MW
- Danger at start
- 5
- Low · FWI index
- Average daily power
- 155MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
27 Mar1 May
2 May 2017
How it evolved, day by day
27 Mar
3 Apr
10 Apr
17 Apr
24 Apr
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
34°high
49km/h · peak gust
16%lowest humidity
It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 5.8 mm on 4 May.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
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).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
6,870 ha reached on 27 Mar4.0 %
-
Chilpancingo de los Bravo 283,354 inhabitants6,701 ha reached on 4 Apr3.1 %
-
129 ha reached on 14 Apr0.1 %
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 2015Built-up area2.6 ha
Residents≈ 300
Inside the perimeter there were about 2.6 hectares of built-up land and about 300 residents (GHSL 2015, 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.
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) |
|---|---|---|---|---|---|
| 27 Mar | 29.7 °C | 53 % | 36 km/h | 2.3 mm | Low 5 |
| 28 Mar | 29.3 °C | 48 % | 38 km/h | 0.6 mm | Moderate 12 |
| 29 Mar | 30.5 °C | 39 % | 38 km/h | 0.0 mm | Moderate 19 |
| 30 Mar | 29.0 °C | 44 % | 38 km/h | 0.0 mm | Moderate 20 |
| 31 Mar | 29.1 °C | 39 % | 40 km/h | 0.0 mm | Moderate 21 |
| 1 Apr | 31.0 °C | 22 % | 40 km/h | 0.0 mm | High 29 |
| 2 Apr | 30.7 °C | 27 % | 41 km/h | 0.0 mm | High 30 |
| 3 Apr | 30.4 °C | 35 % | 38 km/h | 0.0 mm | High 28 |
| 4 Apr | 30.8 °C | 40 % | 41 km/h | 0.1 mm | High 26 |
| 5 Apr | 31.6 °C | 31 % | 42 km/h | 0.0 mm | High 28 |
| 6 Apr | 32.1 °C | 17 % | 44 km/h | 0.0 mm | High 37 |
| 7 Apr | 33.5 °C | 22 % | 47 km/h | 0.0 mm | High 37 |
| 8 Apr | 32.1 °C | 28 % | 44 km/h | 0.0 mm | High 35 |
| 9 Apr | 30.8 °C | 35 % | 45 km/h | 0.0 mm | High 31 |
| 10 Apr | 30.5 °C | 35 % | 40 km/h | 0.0 mm | High 30 |
| 11 Apr | 33.0 °C | 25 % | 40 km/h | 0.0 mm | High 33 |
| 12 Apr | 30.6 °C | 32 % | 45 km/h | 0.0 mm | High 34 |
| 13 Apr | 31.2 °C | 28 % | 42 km/h | 0.3 mm | High 32 |
| 14 Apr | 31.9 °C | 29 % | 40 km/h | 0.1 mm | High 32 |
| 15 Apr | 31.6 °C | 28 % | 40 km/h | 0.4 mm | High 33 |
| 16 Apr | 31.1 °C | 30 % | 45 km/h | 0.6 mm | High 29 |
| 17 Apr | 30.4 °C | 27 % | 47 km/h | 0.2 mm | High 32 |
| 18 Apr | 30.9 °C | 20 % | 47 km/h | 0.3 mm | High 35 |
| 19 Apr | 30.2 °C | 16 % | 48 km/h | 0.1 mm | Very high 39 |
| 20 Apr | 30.2 °C | 23 % | 43 km/h | 0.1 mm | Very high 40 |
| 21 Apr | 30.2 °C | 22 % | 40 km/h | 0.0 mm | Very high 39 |
| 22 Apr | 30.5 °C | 26 % | 40 km/h | 0.0 mm | High 37 |
| 23 Apr | 30.6 °C | 22 % | 46 km/h | 0.0 mm | Very high 39 |
| 24 Apr | 30.4 °C | 34 % | 49 km/h | 0.0 mm | High 36 |
| 25 Apr | 30.5 °C | 29 % | 42 km/h | 0.0 mm | High 34 |
| 26 Apr | 29.5 °C | 40 % | 41 km/h | 0.0 mm | High 30 |
| 27 Apr | 29.7 °C | 45 % | 38 km/h | 0.0 mm | High 27 |
| 28 Apr | 30.0 °C | 47 % | 41 km/h | 0.0 mm | High 26 |
| 29 Apr | 29.8 °C | 41 % | 37 km/h | 0.0 mm | High 26 |
| 30 Apr | 31.0 °C | 42 % | 42 km/h | 0.0 mm | High 27 |
| 1 May | 31.3 °C | 38 % | 42 km/h | 0.0 mm | High 27 |
| 2 May after | 31.5 °C | 37 % | 44 km/h | 0.0 mm | High 28 |
| 3 May after | 31.2 °C | 40 % | 41 km/h | 0.2 mm | High 27 |
| 4 May after | 31.5 °C | 42 % | 40 km/h | 5.8 mm | Low 6 |
Its twins: fires that started in the same weather
It started with an FWI of 5.2, a minimum humidity of 53% and rain the day before. Fires in the area that started in weather like this since 2016: 15.
FWI at the start
5.2
Minimum humidity
53 %
Days without rain
0
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Acapulco de Juárez fire, 27 March 2017
12,746 ha
36 days
FWI 5.2
Min. humidity 53 %
Quechultenango fire, May 2018
1,724 ha
10 days
FWI 0.4
Min. humidity 52 %
53 km away, in 2018
First rain (1 mm or more) after it ended: 2.2 mm on 22 May.
San Luis Acatlán fire, May 2018
2,112 ha
14 days
FWI 0.9
Min. humidity 52 %
104 km away, in 2018
First rain (1 mm or more) after it ended: 2.6 mm on 26 May.
Técpan de Galeana fire, May 2018
4,020 ha
17 days
FWI 0.2
Min. humidity 51 %
102 km away, in 2018
First rain (1 mm or more) after it ended: 4.0 mm on 1 Jun.
Chilpancingo de los Bravo fire, May 2018
2,454 ha
13 days
FWI 7.1
Min. humidity 47 %
15 km away, in 2018
First rain (1 mm or more) after it ended: 1.8 mm on 1 Jun.
Chilpancingo de los Bravo fire, April 2018
11,320 ha
20 days
FWI 0.1
Min. humidity 48 %
32 km away, in 2018
First rain (1 mm or more) after it ended: 16.7 mm on 2 May.
What happened to them
- 14 days
- median duration
- 2,454 ha
- median area
- 100 %
- went past 1,000 ha
- 4.1 mm
- rain at the end (median; 14 of 15 had it)
It was 5.2 times larger than the median of its twins and lasted 36 days, against 14 days.
None of its 15 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 1 of 15, 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 4.1 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
5.8 mmfirst rain
4 May3 days after it ended
49km/h · max. gust
It was considered over on 1 May, and on 4 May 5.8 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 14 of 15, with a median of 4.1 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 · 20 Mar 2017
After · 8 May 2017
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.
Detections table · 916Every 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
- 8,460 haChilpancingo de los Bravo4 May 2019 · 15 days · 17 km away
- 9,972 haChilpancingo de los BravoMarch 2021 · 18 days · 24 km away
- 11,320 haChilpancingo de los Bravo12 April 2018 · 20 days · 32 km away
- 9,251 haCoyuca de Benítez11 April 2024 · 39 days · 32 km away
- 7,635 haChilpancingo de los Bravo9 April 2017 · 26 days · 35 km away
Frequently asked questions
- How long did the Acapulco de Juárez fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 27 March 2017 to 1 May 2017 (36 days). The perimeter dates it from 27 March 2017 to 28 April 2017.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 12,746 hectares (127.5 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 3 municipalities: Acapulco de Juárez (6,870 ha, 4.0 %); Chilpancingo de los Bravo (6,701 ha, 3.1 %); Coyuca de Benítez (129 ha, 0.1 %).
- What was the weather like?
- During the fire the temperature reached 33.5 °C, humidity dropped to 16 % and gusts hit 49 km/h. The fire danger index (FWI) reached 40, class Very high.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Mexico (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: 15. Their median duration was 14 days and their median area 2,454 ha; 100 % went past 1,000 ha. None of its 15 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 1 of 15, 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 4.1 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: 911 · Emergency number and official warnings
Satellite cross-check
History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Area: 13,623 → 12,746 ha.
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; 3 polygons grouped in this page.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 27 March 2017 to 28 April 2017. 916 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 2015, 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 4.0 (CC BY 4.0)). 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.