Madagascar environment data

**ADAM ID: FL-20230225-MDG-00** Flood covering 733414.0 sq m on Feb 25 2023 in Madagascar. It impacted 1214587 people.

**ADAM ID: **FL-20250318-MDG-01 A flood occurred on Mar 18 2025 in Madagascar. It affected an estimated 138403 people and 45057 ha of cropland. WFP’s Automated Disaster Analysis and Mapping (ADAM) system is an operational system for collecting, analysing and mapping geospatial and socio-economic information following sudden onset humanitarian emergencies.

**ADAM ID: **FL-20260213-MDG-00 A flood occurred on Feb 13 2026 in Madagascar. It affected an estimated 1229989 people and 197440 ha of cropland. WFP’s Automated Disaster Analysis and Mapping (ADAM) system is an operational system for collecting, analysing and mapping geospatial and socio-economic information following sudden onset humanitarian emergencies.

GLIDEnumbers are GLobal unique IDEntifiers for Disasters. Each disaster is registered in a record that contains a GLIDEnumber that uniquely identifies it and allows information to be interoperable across multiple disaster information sources, both structured and textual. Accessing disaster information can be a time consuming and laborious task. Not only is data scattered but frequently identification of the disaster can be confusing in countries with many disaster events and across borders. To address both of these issues, Asian Disaster Reduction Center (ADRC) proposed a globally common Unique ID code for disasters. Among the institutions using actively GLIDEnumbers are UN-OCHA (ReliefWeb, FSCC, HDX), UNDRR, UNDP, WMO, IFRC, FAO, the European Commission and the Centre for Research on the Epidemiology of Disasters (CRED), among many others. Country datasets are only produced for countries with at least one GLIDE event since 1 January 2022. The global dataset contains all events available from the GLIDE API, including those not assigned to a country.

Disaster loss and damage dataset for Madagascar

This dataset contains OpenStreetMap data exported from the HOTOSM disaster mapping response to Tropical Cyclone Gezani in early 2026 (GLIDE: TC-2026-000015-MDG ). On Tuesday the 10th of February, Tropical Cyclone GEZANI 26 made landfall near the city of Toamasina on the eastern coast of Madagascar as Category 4 cyclone. The cyclone severely damaged homes leading to massive displacements, caused fatalities and injured many. HOT is working in collaboration with Madagascar OSM Community, Malagasy Red Cross, and INGD (Mozambique Disaster Risk Management Institute) to prioritise and coordinate the mapping response. The data has been contributed by volunteers through the Humanitarian OpenStreetMap Team's Tasking Manager and represents buildings and roads in the affected area. It is updated weekly as mapping progresses. Subscribe to this dataset to be notified of any new updates. This dataset includes all OpenStreetMap features in the area of interest for this event, covering: Buildings and Roads. See the list of projects in the Tasking Manager here. For more information see the HOTOSM activation page. As of 27 April 2026: over 2,000 contributors (non unique).

**ADAM ID: 1000961\_60** Cyclone (category 1) during the period Feb 06 2023-Mar 12 2023 in Mozambique, Madagascar. It impacted 1327678 people.

**ADAM ID: 1000957\_6** Cyclone (tropical storm) during the period Jan 18 2023-Jan 29 2023 in Madagascar. It impacted 0 people.

**ADAM ID: 1001040\_10** Cyclone (tropical storm) during the period Dec 31 2023-Jan 03 2024 in Madagascar. It impacted 0 people.

**ADAM ID: 1001057\_8** Cyclone (tropical storm) during the period Mar 25 2024-Mar 28 2024 in Madagascar. It impacted 536830 people.