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PE · Peru · –

Tahuamanu fire, 14 August 2019 Tahuamanu

Out · last detection 17 Aug 2019, 18:06 UTC

The fire started on 14 August 2019 in Tahuamanu, Peru, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,050 hectares from heat detections, spread across a single municipality.

It is the 56th largest in Madre de Dios since 2016 (of 64 with a page). Number 44 in Peru in 2019, of 47.

The power measured by the satellite is low (25.1 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
1,050ha
GWIS perimeter (Copernicus)
Duration
8days
14 Aug 2019 – 21 Aug 2019
Municipalities hit
1
provinces
Started on
14 Aug
2019
Heat detections
48
in a single hotspot: 25 MW
Danger at start
40
Very high · FWI index
Average daily power
102MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 14 Aug21 Aug
17 Aug 2019

How it evolved, day by day

14 Aug 2019 · 76 MW · 7 15 Aug 2019 · 281 MW · 27 16 Aug 2019 · 18 MW · 7 17 Aug 2019 · 30 MW · 7
14 Aug 15 Aug 16 Aug 17 Aug

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

36°high
46km/h · peak gust
28%lowest humidity

It had gone 20 days without rain (1 mm or more) when it started. Rain came after the fire: 8.2 mm on 26 Aug.

This area had burned before

38% of the perimeter overlaps earlier fires recorded since 2016: 419 ha in 2018.

How big is it?

10 km
It burned the equivalent of 0.7% of the area of London (10 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Tahuamanu 4,648 inhabitants where it started
    1,059 ha reached on 14 Aug
    0.0 %

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 2020
Built-up area0.25 ha
Residents≈ 30

Inside the perimeter there were about 0.25 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)
14 Aug 29.1 °C 28 % 46 km/h 0.0 mm Very high 40
15 Aug 32.2 °C 28 % 34 km/h 0.0 mm High 35
16 Aug 34.8 °C 28 % 19 km/h 0.0 mm High 25
17 Aug 35.5 °C 32 % 37 km/h 0.0 mm High 38
18 Aug 35.5 °C 39 % 40 km/h 0.0 mm High 38
19 Aug 34.2 °C 43 % 26 km/h 0.0 mm High 28
20 Aug 28.2 °C 79 % 26 km/h 18.3 mm Very low 1
21 Aug 31.6 °C 43 % 32 km/h 0.0 mm Low 5
22 Aug after 34.5 °C 39 % 19 km/h 0.0 mm Moderate 12
23 Aug after 34.6 °C 40 % 33 km/h 0.0 mm High 24
24 Aug after 34.7 °C 38 % 23 km/h 0.0 mm Moderate 16
25 Aug after 37.0 °C 35 % 21 km/h 0.7 mm High 25
26 Aug after 29.2 °C 56 % 23 km/h 8.2 mm Very low 1

Its twins: fires that started in the same weather

It started with an FWI of 40.5, a minimum humidity of 28% and 20 days without rain. Fires in the area that started in weather like this since 2016: 14.

FWI at the start 40.5
Minimum humidity 28 %
Days without rain 20
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Tahuamanu fire, August 2024
1,038 ha 17 days FWI 34.2 Min. humidity 28 % 14 km away, in 2024

First rain (1 mm or more) after it ended: 11.2 mm on 15 Sept.

What happened to them

Fires in the area that started in similar weather: 14. With fewer than 15 we give no figures: they would be more noise than signal.

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

8.2 mmfirst rain
26 Aug5 days after it ended
46km/h · max. gust

It was considered over on 21 Aug, and on 26 Aug 8.2 mm fell. We do not know whether the rain or the firefighters put it out.

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.

How we calculate it

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 7 Aug 2019
After · 28 Aug 2019

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 · 48Every 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 timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Peru

Frequently asked questions

How long did the Tahuamanu fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 14 August 2019 to 21 August 2019 (8 days). The perimeter dates it from 14 August 2019 to 17 August 2019.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,050 hectares (10.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Tahuamanu (1,059 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 35.5 °C, humidity dropped to 28 % and gusts hit 46 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 Peru (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: 116 · 105 · 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.
  1. Last day with fire: 17 August 2019 → 21 August 2019.

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
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 116 · 105.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 14 August 2019 to 17 August 2019. 48 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.

How we build fire pages: methodology

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.