Overall Green alert Flood
in Chile

Flood impact summary

This flood is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID: 1102208
Deaths: 3
Displaced: 207
Region: Cochamó, Araucania, Biobío, Curarrehue
Countries: Chile
From - To 10 Sep - 16 Sep
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 19-09-2023

SENDAI Indicator A N Country Location Info
death 3 Chile Curarrehue
SENDAI Indicator B N Country Location Info
affected 125 Chile Romeral
affected 443 Chile Cochamó
affected 5016 Chile Araucania
affected 824 Chile Biobío
displaced 7 Chile Pelluhue
displaced 200 Chile Viña del Mar
SENDAI Indicator C N Country Location Info
houses 30 Chile Chillán
houses 16 Chile Pelluhue
houses 7 Chile Colbún
houses 6 Chile Biobío
houses 366 Chile Biobío
houses 4 Chile Araucania
houses 128 Chile Araucania

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2023-09-03 / 2023-09-23  

Sunday 03/09Monday 04/09Tuesday 05/09Wednesday 06/09Thursday 07/09Friday 08/09Saturday 09/09Sunday 10/09Monday 11/09Tuesday 12/09Wednesday 13/09Thursday 14/09Friday 15/09Saturday 16/09Sunday 17/09Monday 18/09Tuesday 19/09Wednesday 20/09Thursday 21/09Friday 22/09Saturday 23/09

Timeline of revisions

For accessing reports of previous advisories, please click on the advisory number in the table below.

IDAlert ColorPopulation affectedStart DateEnd DateSource
1 0 deaths and 7 displaced 10 Sep 2023 12 Sep 2023 GLOFAS
2 0 deaths and 200 displaced 12 Sep 2023 15 Sep 2023 GLOFAS
3 3 deaths 14 Sep 2023 16 Sep 2023 GLOFAS

Flood polygons

This polygon (translucent blue with a blue border) is drawn by the analysts recording the flood event. It is meant to include all the areas reported as affected, by official source or the media. It does not represent the area actually under water.

Microwave flood detection

Flooded area, as detected in microwaves by the Global Flood Detection System of the JRC, based on NASA TRMM/GPM observations. This system has a rather low resolution (of 5-10km) but is not affected by clouds.
For more details, see http://www.unisdr.org/files/9622_LBNA23303ENC002.pdf.
The areas with a flood signal along the coast are an artefact of the system and should not be considered.

Optical Flood detection

Flooded area as detected in optical wavelengths by NASA/MODIS, known as "MODIS Flood Product". Data are made available by NASA GSFC Flood Mapping Project, http://oas.gsfc.nasa.gov/floodmap/index.html. Resolution of 250m, heavily affected by cloud cover.