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27 January 2020

Flood and Landslide in Madagascar

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Type of Event:Flood
Location of Event:Madagascar
Date of Charter Activation:2020-01-27
Time of Charter Activation:12:19
Time zone of Charter Activation:UTC+01:00
Charter Requestor:Bureau National de Gestion des Risques et des Catastrophes (BNGRC) Général de Brigade ELACK Olivier Andriakaja
Activation ID:643
Project Management:SERTIT

Heavy rainfall throughout January has triggered flash flooding and landslides across several areas of Madagascar. At least 12 people have been killed with 18 more reported missing.

Madagascar's disaster agency BNGRC, reported the capital city Antananarivo suffered severe damage from flooding where 500 people were affected and 40 houses were destroyed. The University of Antananarivo was also badly affected and had to be closed.

Four fatalities were reported due to flash floods and landslides across Antananarivo. Two more people were killed after being washed away by floodwaters in Andapa, northern Sava Region.

Heavy flooding was also reported in the port city of Mahajanga in the Boeny region, where over a thousand people are affected with many being evacuated and placed in temporary accommodation.

The Sambirano River in the Diana region had a rapid increase in water levels and began to burst its banks. Red warnings for heavy rain were issued for areas in north-western Madagascar, while red warnings for strong winds and high waves were in place for the country's coastal western area.

The Government declared a State of Emergency on 24 January and is leading the humanitarian response. Severe weather conditions including further rainfall are forecast for the coming days.


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Flood in Morafeno, Madagascar

Source: TerraSAR-X / Sentinel-2
Acquired: TerraSAR-X: 29/01/2020 and 02/02/2020
Sentinel-2: 20/11/2019

Copyright: TerraSAR-X © DLR e. V. 2020,Distribution: Airbus DS Geo GmbH
Sentinel-2 © Contains modified Copernicus Sentinel data (2019)
Map produced by National Academy of Sciences of Belarus

Flooded areas in Boriziny, Madagascar

Source: Sentinel-1 and Sentinel-2
Acquired: Sentinel-1: 19/01/2020 and 31/01/2020
Sentinel-2: 21/10/2019

Copyright: Sentinel-1 and Sentinel-2 © Contains modified Copernicus Sentinel data (2020)
Map produced by National Academy of Sciences of Belarus

Flooded areas in Amparafaravola, Madagascar

Source: Sentinel-1 and Sentinel-2
Acquired: Sentinel-1: 14/01/2020 and 26/01/2020
Sentinel-2: 12/11/2019

Copyright: Sentinel-1 and Sentinel-2 © Contains modified Copernicus Sentinel data (2020)
Map produced by National Academy of Sciences of Belarus

Flood situation in Ambohitrarivo, Madagascar

Source: Sentinel-2 / ALOS-2
Acquired: Sentinel-2: 31/05/2019
ALOS-2: 29/01/2020

Copyright: Sentinel-2 © Contains modified Copernicus Sentinel data (2019)
ALOS-2 © JAXA (2020) All rights reserved
Map produced by Copernicus EMS

Flooded areas in Madagascar

Source: TerraSAR-X / Sentinel-2
Acquired: TerraSAR-X: 04/04/2008 and 29/01/2020
Sentinel-2: 20/11/2019

Copyright: TerraSAR-X © DLR e. V. 2020, Distribution: Airbus DS Geo GmbH
Sentinel-2 © Contains modified Copernicus Sentinel data (2019)
Map produced by National Academy of Sciences of Belarus

Surface water detected in Madagascar

Source: Suomi-NPP
Acquired: 23/01/2020 to 27/01/2020

Copyright: Suomi-NPP © NOAA (2020)
Map produced by UNITAR/UNOSAT

Flood and landslide analysis in Madagascar

Source: Landsat-8
Acquired: 23/01/2020 and 27/01/2020

Copyright: Landsat-8 data and products © USGS (2020) - All rights reserved
Map produced by National Academy of Sciences of Belarus

Composited flood water extents in Madagascar

Source: Suomi-NPP
Acquired: 23 to 27/01/2020

Copyright: Suomi-NPP © NOAA (2020)
Map produced by George Mason University

Composited flood water extents in Madagascar

Source: Suomi-NPP
Acquired: 27/01/2020

Copyright: Suomi-NPP © NOAA (2020)
Map produced by George Mason University

Satellite detected waters in Madagascar

Source: Suomi NPP
Acquired: 23 to 28/01/2020

Copyright: Suomi-NPP © NOAA (2020)
Map produced by UNITAR/UNOSAT

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