Overall Red alert Flood for China
in China

Flood impact summary

Flood China, Vietnam is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID: 1100113
Deaths: 77
Displaced: 1308000
Region: Hainan, Vietnam, Kiên Giang, Provincia di Cà Mau, Provincia di Soc Trang
Countries: China, Vietnam
From - To 31 Jul - 20 Aug
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 31-07-2019

SENDAI Indicator A N Country Location Info
death 12 Vietnam Kiên Giang, Provincia di Cà Mau, Provincia di Soc Trang, Vietnam
death 56 China Shandong, Zhejiang, Zhejiang and Shandong
death 9 China ?????????????? /??? / Wenchuan
missing 35 China ?????????????? /??? / Wenchuan
missing 9 China, Vietnam Vietnam
SENDAI Indicator B N Country Location Info
affected 5000000 China Shandong, Zhejiang
displaced 88000 China Shandong, Shandong Province
displaced 1220000 China Zhejiang, Zhejiang Province
SENDAI Indicator C N Country Location Info
houses 6470 Vietnam Vietnam
houses damaged 36000 China Zhejiang, Zhejiang Province

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2019-07-24 / 2019-08-27  

Wednesday 24/07Thursday 25/07Friday 26/07Saturday 27/07Sunday 28/07Monday 29/07Tuesday 30/07Wednesday 31/07Thursday 01/08Friday 02/08Saturday 03/08Sunday 04/08Monday 05/08Tuesday 06/08Wednesday 07/08Thursday 08/08Friday 09/08Saturday 10/08Sunday 11/08Monday 12/08Tuesday 13/08Wednesday 14/08Thursday 15/08Friday 16/08Saturday 17/08Sunday 18/08Monday 19/08Tuesday 20/08Wednesday 21/08Thursday 22/08Friday 23/08Saturday 24/08Sunday 25/08Monday 26/08Tuesday 27/08

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 12 deaths 31 Jul 2019 06 Aug 2019 GLOFAS
2 56 deaths and 1308000 displaced 09 Aug 2019 14 Aug 2019 GLOFAS
3 9 deaths 20 Aug 2019 20 Aug 2019 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.