Overall Orange alert Flood
in Peru

Flood impact summary

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

Updated: this report is based on update 4: (20 Mar 2017 10:50) .

People Killed: 90
People displaced: 110000
Region: Ancash|Arequipa|Ayacucho|Cajamarca|Cusco|Huancavelica|Hußnuco|JunÝn|La Libertad|Lima|Madre de Dios|Tacna|Tumbes|Ucayali
Known identifiers for this event: FL-2017-000018-PER

Satellite Oservation


Timeline of revisions

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

IDAlert ColorPopulation affectedSourceDate added
1 48 killed and 8000 displaced JRC 20 Mar 2017 10:50
2 48 killed and 8000 displaced JRC 21 Mar 2017 14:20
3 85 killed and 110000 displaced JRC 24 Mar 2017 17:20
4 90 killed and 110000 displaced JRC 29 Mar 2017 15:20

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.