Overall Red alert Flood
in Libya

Flood impact summary

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

GDACS ID: 1102204
Deaths: 5300
Displaced: 33000
Region: Darnah, Susah, Derna, Benghazi, Darnah
Countries: Libya
From - To 08 Sep - 14 Sep
Known identifiers for this event: FL-2023-000170-LBY


For more info on GDACS alert score click here.

Impact Assessement as of 12-09-2023

SENDAI Indicator A N Country Location Info
death 5300 Libya Darnah, Susah, Derna, Benghazi
missing 10000 Libya Susah, Benghazi, Derna, Darnah
SENDAI Indicator B N Country Location Info
displaced 33000 Libya Benghazi, Darnah, Susah, Derna

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2023-09-01 / 2023-09-21  

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 5400 deaths and 30000 displaced 08 Sep 2023 10 Sep 2023 GLOFAS
2 5300 deaths and 33000 displaced 09 Sep 2023 12 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.