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27 janvier 2020

Flood and Landslide in Madagascar

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type d'évènement:Flood
Localidation de l'évènement:Madagascar
Date de l'activation Charte:2020-01-27
Time of Charter Activation:12:19
Time zone of Charter Activation:UTC+01:00
Demandeur:Bureau National de Gestion des Risques et des Catastrophes (BNGRC) Général de Brigade ELACK Olivier Andriakaja
Activation ID:643
Chef de projet: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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Flooding in Marovoay, Madirovalo, Ambato Boeny, Madagascar

Source: Sentinel-2
Acquis: 21/10/2019 and 09/03/2020

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

Floods at Lake Alaotra, Madagascar

Source: Sentinel-1 / Sentinel-2
Acquis: Sentinel-1: 02/03/2020
Sentinel-2: 12/12/2019 and 06/03/2020

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

Flooding in Marovoay, Madirovalo, Ambato Boeny, Madagascar

Source: Sentinel-2
Acquis: 21/10/2019, 28/02/2020 and 04/03/2020

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

Flood at Mampikony, Madagascar

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

Copyright: Sentinel-1: 19/02/2020 and 02/03/2020
Sentinel-2: 21/10/2019

Floods at Lake Alaotra, Madagascar

Source: Sentinel-1 / Sentinel-2
Acquis: Sentinel-1: 19/02/2020 and 02/03/2020
Sentinel-2: 12/12/2019

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

Floods at Lake Alaotra, Madagascar

Source: Sentinel-1 / Sentinel-2
Acquis: Sentinel-1: 19/02/2020
Sentinel-2: 12/12/2019 and 25/02/2020

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

Flooding in Marovoay, Madirovalo, Ambato Boeny, Madagascar

Source: Sentinel-2
Acquis: 21/10/2019 and 28/02/2020

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

Flood at Mampikony, Madagascar

Source: Sentinel-2
Acquis: 21/10/2019 and 28/02/2020

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

Flood at Mampikony, Madagascar

Source: Landsat 8 / Sentinel-1
Acquis: Landsat 8: 21/02/2020
Sentinel-1: 21/10/2019

Copyright: Landsat-8 data and products © USGS (2020) - All rights reserved
Sentinel-1 © Contains modified Copernicus Sentinel data (2019)
Map produced by National Academy of Sciences of Belarus

Floods at Lake Alaotra, Madagascar

Source: Sentinel-1
Acquis: 19/02/2020

Copyright: Sentinel-1 © Contains modified Copernicus Sentinel data (2020)
Map produced by NOAA

Flooding at Mampikony, Madagascar

Source: Sentinel-1 / Sentinel-2
Acquis: Sentinel-1: 19/02/2020
Sentinel-2: 21/10/2019

Copyright: Sentinels © Contains modified Copernicus Sentinel data (2020)
Map produced by National Academy of Sciences of Belarus

Flooding at Alaotra, Madagascar

Source: Sentinel-1 / Sentinel-2
Acquis: Sentinel-1: 19/02/2020
Sentinel-2: 10/02/2020

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

Flooding at Marovay, Madirovalo and Ambato Boeny, Madagascar

Source: Sentinel-2
Acquis: Pre-disaster: 29/10/2019
Post-disaster: 18/02/2020

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

Flood in Marovoay, Madirovalo, and Ambato Boeny in Madagascar

Source: Sentinel-1 / Sentinel-2
Acquis: Sentinel-1: 12/02/2020
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

Flooding at Mampikony, Madagascar

Source: Sentinel-1 / Sentinel-2
Acquis: Sentinel-1: 12/02/2020
Sentinel-2: 21/10/2019

Copyright: Sentinels © Contains modified Copernicus Sentinel data (2020)
Map produced by National Academy of Sciences of Belarus

Flooding at Maevatanana, Madagascar

Source: WorldView-3
Acquis: 09/02/2020

Copyright: WorldView-3 © DigitalGlobe Inc.
Map produced by National Academy of Sciences of Belarus

Flooding at Mampikony, Madagascar

Source: Sentinel-2
Acquis: 10/02/2020

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

Flooding at Alaotra, Madagascar

Source: Sentinel-2
Acquis: 10/02/2020

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

Water detected in Madagascar, Ambato Boeny.

Source: RESURS-P, KSHMSA_VR
Acquis: 09/02/2020

Copyright: © All rights reserved, Roscosmos, 2020
Map produced by UE "Geoinformation Systems"

Composited flood water extents in Madagascar

Source: Suomi-NPP
Acquis: 05/02/2020

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

Detected water in Madagascar, Maevatanana

Source: KANOPUS-V
Acquis: 06/02/2020

Copyright: © All rights reserved, Roscosmos, 2020
Map produced by UE "Geoinformation Systems"

Flood assessment, Mampikony, Madagascar

Source: Sentinel-2 / Landsat-8
Acquis: Sentinel-2: 03/02/2020
Landsat-8: 05/02/2020

Copyright: Landsat-8 data and products © USGS (2020) - All rights reserved
Sentinel-2 © Contains modified Copernicus Sentinel data (2020)
Map produced by National Academy of Sciences of Belarus

Floods in Madagascar, MahaJamba - Mampikony

Source: Sentinel-2
Acquis: 03/02/2020

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

Satellite dected waters extents, Republic of Madagascar

Source: Suomi-NPP
Acquis: 29/01/2020 to 02/02/2020

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

Floods in Madagascar

Source: Sentinel-1
Acquis: 01/02/2020

Copyright: Sentinel-1 © Contains modified Copernicus Sentinel data (2020)
Produced by NOAA

Satellite Detected Water in Ambatoboney, Morafeno, Maevatanana Madagascar.

Source: BKA
Acquis: 03/02/2020

Copyright: Contains modified Belarusian satellite data, © UE "Geoinformation systems.
Map produced by UE "Geoinformation systems"

Floods in Madagascar

Source: Sentinel-1
Acquis: 31/01/2020

Copyright: Sentinel-1 © Contains modified Copernicus Sentinel data (2020)
Produced by NOAA

Flood in Morafeno, Madagascar

Source: TerraSAR-X / Sentinel-2
Acquis: 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
Acquis: 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
Acquis: 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
Acquis: 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
Acquis: 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
Acquis: 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
Acquis: 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
Acquis: 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
Acquis: 27/01/2020

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

Satellite detected waters in Madagascar

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

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

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