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Flood in the Solomon Islands

Saturday, 05 April 2014

Type of Event:
Flood
Location of Event:
Honiara - Solomon Islands
Date of Charter Activation:
05 April 2014
Charter Requestor:
UNITAR/UNOSAT on behalf of UN ESCAP and UN OCHA
Project Management:
UNITAR/UNOSAT

Description of the event

Days of heavy rainfall have caused flash flooding in the Solomon Islands, inundating the capital city of Honiara and displacing thousands of people. An estimated 19 people have been killed and almost 30 are still missing.

The flooding began on 03 April 2014 when the rainfall caused rivers across the main island of Guadalcanal to burst their banks. The floodwaters from the River Matanikau left many areas of Honiara underwater and reportedly destroyed thousands of homes along the rivers. The flooding has also damaged or destroyed bridges along the rivers and cut off or damaged roads.

The river levels rose much faster than anticipated, giving people little time to evacuate. The storm that caused the rain later developed into a Category 1 Tropical Cyclone, Ita, which moved away from the Solomon Islands over the weekend.

A state of emergency has been declared, and it is estimated that as many as 12,000 people could be affected in Honiara. While the storm weakened and water levels began to subside on 05 February, the long process of recovery and rebuilding is underway.

Water level situation in Gold Ridge Dam, Guadalcanal, Solomon Islands

Source: Terra - ASTER / Landsat-8
Acquired: Terra: 15/04/2014
Landsat-8: 15/03/2014

Copyright: Terra © NASA
Landsat-8 data and products © USGS (2014) - All rights reserved
Map produced by UNITAR/UNOSAT

Damage assessment along Matanikau River, Honiara, Guadalcanal, Solomon Islands

Source: Resurs-P / KOMPSAT-2
Acquired: Resurs-P: 13/04/2014
KOMPSAT-2: 16/01/2012

Copyright: Resurs-P © Roscosmos
KOMPSAT-2 © KARI
Map produced by UNITAR/UNOSAT

Flood affected areas along Matanikau River, Honiara, Guadalcanal, Solomon Islands

Source: Resurs-P / KOMPSAT-2
Acquired: Resurs-P: 08/04/2014
KOMPSAT-2: 16/01/2012

Copyright: Resurs-P © Roscosmos
KOMPSAT-2 © KARI
Map produced by UNITAR/UNOSAT

Estimated rainfall accumulation from 2 to 5 April over the Solomon Islands

Source: TRMM
Acquired: 02/04/2014 - 05/04/2014

Copyright: NASA
Map produced by UNITAR/UNOSAT