Overall Green alert Flood
in Philippines

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: 1100820
Deaths: 0
Displaced: 24492
Countries: Philippines
From - To 10 Apr - 28 Apr
Known identifiers for this event:


For more info on GDACS alert score click here.

Impact Assessement as of 28-04-2021

SENDAI Indicator B N Country Location Info
affected 3280 Philippines -
displaced 5000 Philippines Davao del Norte
displaced 500 Philippines Cotabato Province
displaced 6314 Philippines Eastern Samar
displaced 12259 Philippines Northern Samar
displaced 419 Philippines -
SENDAI Indicator C N Country Location Info
houses destroyed 20 Philippines Cotabato Province
SENDAI Indicator D N Country Location Info
bridges damaged 1 Philippines Biliran
roads 2 Philippines Eastern Samar

Satellite Observation


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 5500 displaced 10 Apr 2021 12 Apr 2021 FloodList
2 0 deaths and 18573 displaced 17 Apr 2021 19 Apr 2021 FloodList
3 0 deaths and 419 displaced 25 Apr 2021 28 Apr 2021 FloodList

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.