Displacement Tracking Matrix (DTM) – Dominica Hurricane Maria Response (Round 3 – 1 December 2017)



The following are the findings from collective centers assessed during the second round of DTM assessments conducted from 20 -27 November 2017.

  • 30 collective centers assessed by IOM house Internally Displaced Persons (IDPs) in Dominica (other shelters have been identified by the ministry of social services and will be included in the next round of DTM assessments)

  • These 30 centres house 120 households (459 individuals) 44% of the displaced population reside in schools.

  • A reported 61% of the IDPs residing in collective centers present a vulnerability.

  • 93% of IDPs indicated the severe damage to their house as the main reason for remaining in shelters.

  • Key informants in all centers have indicated that shelter materials such as wood, metal sheeting, tools are needed to repair damaged homes.

  • Access to sectoral services (e.g. WASH, CCCM, Education, Health, Shelter/NFI, Food, Protection and Livelihood) varies between collective centers


The country of Dominica has been devastated by the passage of Hurricane Maria. The hurricane made landfall on the island on 18 September 2017 as a category 5 hurricane, causing the death of at least 26 persons and extensive damage to buildings and infrastructure. As per an aerial survey from the Pacific Disaster Centre of 6,770 of the 26,085 buildings in the country, 67% of buildings were damaged (moderately or severely) and 23% were destroyed. Many families who took refuge in pre-identified evacuation shelters (hereafter referred to as collective centers) across the country prior to and during the hurricane still reside in these centers.

To identify the existing collective centers and monitor displacement across the country, IOM established its Displacement Tracking Matrix (DTM) in Dominica. The Displacement Tracking Matrix (DTM) is an integrated set of tools used to track and monitor the movement and living conditions of displaced populations. Baseline data is collected across an affected area, processed by IOM’s own DTM team, and when shared with key government and humanitarian partners, it enables timely identification of vulnerable populations and their needs, thus strengthening the coordinated efforts of all humanitarian actors. DTM captures the movement and trends of a constantly shifting population and provides ongoing and up‐to‐ date information with increased frequency during new crises. The DTM aims to track population movement in Dominica through a set of tools including observation, cartography, key informant interviews, and physical counting.

Preliminary site verifications of collective centers were completed on 6 October, compiling data gathered by the government as well as assessments by IOM teams, starting with the 143 official centres and expanding to new, unofficial collective centres. Rapid site assessments began on 11 October 2017 with a report on the first round of assessments published on 20 October 2017. The second round of DTM results was published on November 6th 2017.

This report presents the data collected by IOM teams during the period of 20 to 27 November 2017.