Interactive map
Know the hazard where you live, and where to go.
Flood, landslide and storm surge from Project NOAH, as zones, as heat or barangay by barangay, with evacuation sites, hospitals and offices on top. Pick a place, or let the map find you.
Disaster risk and preparedness
Barangays with a tenth or more of their land in NOAH’s high class, of the region’s 2,185, and the people who lived in them at the 2024 census.
- Barangays with a tenth or more of their land in the high class
- 324of 2,185
- Home to 798,538 people in 2024, 18% of the region
- Barangays with a tenth or more of their land in the high class
- 235of 2,185
- Home to 386,429 people in 2024, 9% of the region
- Barangays with a tenth or more of their land in the high class
- 181of 2,185
- Home to 504,002 people in 2024, 11% of the region
Flood
Landslide
Storm surge
NOAH’s maps show what could happen in a severe event, not what has happened. They are drawn from elevation data and models, at a scale for planning: check a site that matters with your municipal disaster risk reduction and management office (MDRRMO) before you build or decide to stay. In an emergency, follow your barangay and MDRRMO.
By province
| Province | Barangays | Flood: medium or high | Landslide: medium or high | Storm surge: medium or high |
|---|---|---|---|---|
| Basilan1,117 km² | 210 | <1% | 16% | 9% |
| Lanao del Sur3,337 km² | 1,161 | 10% | 32% | <1% |
| Maguindanao del Norte2,278 km² | 221 | 24% | 35% | 2% |
| Maguindanao del Sur2,276 km² | 287 | 33% | 19% | 0% |
| Tawi-Tawi1,142 km² | 203 | Not modelled | 10% | 20% |
| Cotabato City84.9 km² | 37 | 28% | 1% | 31% |
| Special Geographic Area502 km² | 63 | 16% | 12% | 0% |
Towns most exposed
Flood
Towns with the most land in medium or high flood hazard, from a 100-year rain.
- 1Northern Kabuntalan · Maguindanao del Norte83%11% high
- 2Kabuntalan · Maguindanao del Norte79%28% high
- 3Mamasapano · Maguindanao del Sur75%8% high
- 4Mangudadatu · Maguindanao del Sur67%12% high
- 5Sultan Mastura · Maguindanao del Norte63%29% high
- 6Datu Abdullah Sangki · Maguindanao del Sur58%20% high
- 7Tamparan · Lanao del Sur52%3% high
- 8Pagalungan · Maguindanao del Sur49%7% high
- 9Datu Saudi Ampatuan · Maguindanao del Sur48%4% high
- 10Rajah Buayan · Maguindanao del Sur47%5% high
- 11Talitay · Maguindanao del Norte46%3% high
- 12Sultan Sa Barongis · Maguindanao del Sur45%7% high
Landslide
Towns with the most land in medium or high landslide hazard, from unstable slopes and debris flows.
- 1Datu Blah T. Sinsuat · Maguindanao del Norte68%27% high
- 2Bacolod-Kalawi · Lanao del Sur65%48% high
- 3Tugaya · Lanao del Sur64%38% high
- 4Picong · Lanao del Sur58%28% high
- 5Madamba · Lanao del Sur57%26% high
- 6Madalum · Lanao del Sur56%25% high
- 7Upi · Maguindanao del Norte52%10% high
- 8Ampatuan · Maguindanao del Sur49%20% high
- 9Kapatagan · Lanao del Sur49%14% high
- 10South Upi · Maguindanao del Sur47%10% high
- 11Tagoloan Ii · Lanao del Sur43%16% high
- 12Lumba-Bayabao · Lanao del Sur43%15% high
Storm surge
Towns with the most land in medium or high storm surge hazard, from Storm Surge Advisory 4, a surge above 4 m.
- 1Tabuan-Lasa · Basilan59%58% high
- 2Sitangkai · Tawi-Tawi50%36% high
- 3Hadji Muhtamad · Basilan41%40% high
- 4Sibutu · Tawi-Tawi34%20% high
- 5Tandubas · Tawi-Tawi32%28% high
- 6City of Cotabato · Cotabato City31%23% high
- 7Maluso · Basilan16%15% high
- 8Sapa-Sapa · Tawi-Tawi16%12% high
- 9Bongao · Tawi-Tawi16%13% high
- 10Lantawan · Basilan15%14% high
- 11Panglima Sugala · Tawi-Tawi15%13% high
- 12Simunul · Tawi-Tawi15%8% high
Sources and method
Hazards. Project NOAH, University of the Philippines Resilience Institute: flood hazard for a 100-year rain return, landslide hazard (shallow, structurally controlled and debris flow), and storm surge hazard at Storm Surge Advisory 4, from NOAH’s open data downloads, under the Open Data Commons Open Database License (ODbL). The maps here are cut to the region and simplified for the screen; NOAH’s own site holds them at full detail.
Exposure. Each barangay’s land in each hazard class is measured against PSA’s boundaries (2023 PSGC edition, through faeldon/philippines-json-maps), the way the Directory draws them. A barangay counts as highly exposed when a tenth or more of its land is in the high class. NOAH has no flood model for Tawi-Tawi, and storm surge reaches only the coasts. PSA counts 2,185 barangays in the region; the boundary file holds 2,182, so three Special Geographic Area barangays made or moved since have no hazard measure yet.
km² of each barangay inside each Project NOAH hazard class (1 low, 2 medium, 3 high): flood for a 100-year rain, landslide, and storm surge at Storm Surge Advisory 4. NOAH has no flood model for Tawi-Tawi. Data built 2026-10-23; shared, as NOAH asks, under the same ODbL 1.0 (Project NOAH open data); boundaries PSA 2023 PSGC via faeldon/philippines-json-maps.
Facilities. Each point links to the record it came from.
- OpenStreetMap · Every facility on the map, read through the Overpass API and placed in the barangay that holds it (ODbL). It is mapped by volunteers and is not an official register.
- DILG master list of evacuation centres · The official list with coordinates (2023) is released only on request through FOI, so it is not on the map. Few of the region’s evacuation centres are on OpenStreetMap; schools stand in because they are what LGUs most often designate, but a school shown here is not thereby a designated centre.
- DOH National Health Facility Registry · The official register of hospitals and health facilities. It refuses automated access, so the health facilities shown are OpenStreetMap’s.
- PSA 2024 Census of Population, by barangay · As PSA prints it beside each barangay in the PSGC, read through the psgc package (github.com/yng-me/psgc). Three barangays of the Special Geographic Area that PSA has since moved between towns have no figure.
Know of an evacuation centre that is missing, closed or misplaced? Tell us.
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