San Ignacio fire, 17 September 2022 San Ignacio
The fire started on 17 September 2022 in San Ignacio, Bolivia, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 10,307 hectares from heat detections, spread across a single municipality.
It is the 145th largest in Beni since 2016 (of 904 with a page). Number 46 in Bolivia in 2022, of 222.
Compare with…
- Burnt area
- 10,307ha
- GWIS perimeter (Copernicus)
- Duration
- 12days
- 17 Sept 2022 – 28 Sept 2022
- Municipalities hit
- 1
- municipalities
- Started on
- 17 Sept
- 2022
- Heat detections
- 353
- in a single hotspot: 200 MW
- Danger at start
- 16
- Moderate · FWI index
- Average daily power
- 881MW
- detected power per day, on average
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 4.5 mm on 29 Sept.
This area had burned before
61% of the perimeter overlaps earlier fires recorded since 2016: 1,066 ha in 2016, 4,054 ha in 2017, 477 ha in 2018, 4,591 ha in 2019, 87 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 6,298 ha that had burned before.
- 2,890 ha San Ignacio fire, August 2017 5,633 ha in total; the hectares shown are those it shares with this fire
- 1,546 ha San Ignacio fire, September 2019 9,681 ha in total; the hectares shown are those it shares with this fire
- 1,165 ha San Ignacio fire, September 2017 5,168 ha in total; the hectares shown are those it shares with this fire
- 87 ha San Ignacio fire, August 2021 7,989 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).
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
-
10,325 ha reached on 17 Sept0.4 %
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 2020Inside the perimeter there were about 0.23 hectares of built-up land and about 30 residents (GHSL 2020, 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) |
|---|---|---|---|---|---|
| 17 Sept | 35.3 °C | 35 % | 28 km/h | 0.0 mm | Moderate 16 |
| 18 Sept | 36.8 °C | 39 % | 41 km/h | 0.0 mm | Moderate 20 |
| 19 Sept | 36.8 °C | 40 % | 49 km/h | 0.0 mm | Moderate 21 |
| 20 Sept | 37.2 °C | 39 % | 39 km/h | 0.1 mm | Moderate 21 |
| 21 Sept | 37.1 °C | 41 % | 48 km/h | 0.0 mm | High 24 |
| 22 Sept | 32.1 °C | 49 % | 41 km/h | 1.0 mm | Moderate 17 |
| 23 Sept | 27.0 °C | 36 % | 38 km/h | 0.5 mm | High 22 |
| 24 Sept | 31.7 °C | 46 % | 31 km/h | 1.6 mm | Low 9 |
| 25 Sept | 36.3 °C | 38 % | 39 km/h | 0.1 mm | Moderate 21 |
| 26 Sept | 35.8 °C | 43 % | 38 km/h | 0.1 mm | Moderate 21 |
| 27 Sept | 36.0 °C | 42 % | 38 km/h | 1.0 mm | Moderate 17 |
| 28 Sept | 35.1 °C | 47 % | 37 km/h | 17.9 mm | Very low 4 |
| 29 Sept after | 22.7 °C | 60 % | 42 km/h | 4.5 mm | Very low 2 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 24 September 2022 the air beside the fire reached 313 µg/m³ of PM2.5. That day averaged 160: 11 times the WHO daily guideline (15).
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 · 353Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 43,008 haSan Ignacio21 August 2024 · 25 days · 30 km away
- 19,774 haSanta Ana16 September 2022 · 13 days · 34 km away
- 17,845 haSan Ignacio3 November 2023 · 16 days · 34 km away
- 15,895 haSan Ignacio25 August 2022 · 16 days · 35 km away
- 128,905 haSan Ignacio22 August 2022 · 30 days · 36 km away
- 33,379 haSan Ignacio10 September 2024 · 29 days · 38 km away
Frequently asked questions
- How long did the San Ignacio fire last?
- GWIS (Copernicus) dates it between 17 September 2022 and 28 September 2022: 12 days between the first and last heat detection of the perimeter.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 10,307 hectares (103.1 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered San Ignacio (10,325 ha, 0.4 %).
- What was the weather like?
- During the fire the temperature reached 37.2 °C, humidity dropped to 35 % and gusts hit 49 km/h. The fire danger index (FWI) reached 24, class High.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Bolivia (geoBoundaries). It is not an official report.
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: 119 · 110 · Emergency number and official warnings ›
Satellite cross-check
History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
No changes since 24 October 2026.
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.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 353 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 2020, 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 ADM3 (Public Domain). 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.