Overall Green alert Flood
in Russia

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: 1100986
Deaths: 4
Displaced: 613
Region: Sochi
Countries: Russia
From - To 21 Jul - 25 Jul
Known identifiers for this event:


For more info on GDACS alert score click here.

Impact Assessement as of 26-07-2021

SENDAI Indicator A N Country Location Info
death 4 Russia Sochi
missing 3 Russia Sochi
SENDAI Indicator B N Country Location Info
displaced 13 Russia Sochi
displaced 600 Russia Shilkinsky
SENDAI Indicator C N Country Location Info
houses damaged 450 Russia Shilkinsky
SENDAI Indicator D N Country Location Info
bridges destroyed 6 Russia -

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 4 deaths and 13 displaced 23 Jul 2021 25 Jul 2021 FloodList
2 0 deaths and 600 displaced 21 Jul 2021 23 Jul 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.