on Tuvalu in late January and early February 1990. On Vaitupu Island around 85 percent of residential homes, trees and food crops were destroyed, while residential homes were also destroyed on the islands of Niutao, Nui and Nukulaelae. The majority of the islands in Tuvalu reported damage to vegetation and crops especially bananas, coconuts and breadfruit, with the extent of damage ranging from 10 to 40 percent. In Funafuti sea waves flattened the Hurricane Bebe bank at the southern end of the airstrip, which caused sea flooding and prompted the evacuation of several families from their homes. In Nui and Niulakita there was a minor loss of the landscape because of sea flooding while there were no lives lost. Soon after the systems had impacted Tuvalu, a Disaster Rehabilitation Sub-Committee was appointed to evaluate the damage caused and make recommendations to the National Disaster Committee and to the Cabinet of Tuvalu, on what should be done to help rehabilitate the affected areas. In March 2015 Cyclone Pam, the Category 5 cyclone that devastated Vanuatu, caused damage to houses, crops and infrastructure on the outer islands. A state of emergency was subsequently declared on 13 March. An estimated 45 percent of the nation's nearly 10,000 people were displaced, according to Prime Minister Enele Sopoaga. The three northern islands, Nanumea, Nanumanga and Niutao were badly affected by flooding as the result of storm surges. More than 400 people from the northern island of Nanumanga were moved to emergency accommodation in the school buildings, as well as another 85 families from Nukulaelae in the south of Tuvalu. On Nui the storm surges contaminated the water supplies and damaged septic tanks and grave sites. The central islands of Vaitupu and Nukufetau were also affected by flooding caused by storm surges. The Situation Report published on 30 March reported that on Nukufetau all the displaced people have returned to their homes. Nui suffered the most damage of the three central islands (Nui, Nukufetau and Vaitupu); with both Nui and Nukufetau suffering the loss of 90% of the crops. Of the three northern islands (Nanumanga, Niutao, Nanumea), Nanumanga suffered the most damage, with 60–100 houses flooded and damage to the health facility. Vasafua islet, part of the Funafuti Conservation Area, was severely damaged by Cyclone Pam. The coconut palms were washed away, leaving the islet as a sand bar. Tsunami Nui was struck by a giant