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Explainers, methodology deep-dives, and practical guides on Philippine property hazards. Written for the decisions that matter.
130 articles published
A wind signal is a wind forecast for an area, and nothing more. It does not tell you how much rain is coming, and some of the worst flooding in Philippine memory happened under low signals. Here are the five levels and their wind speeds, how they differ from rainfall warnings and storm surge advisories, and the question none of the three can answer about your address.
La Union packs two very different hazard profiles into a narrow province. The coastal strip faces storm surge, the back country faces landslides, and in most towns you can drive between them in fifteen minutes. Here is how to work out which side of the highway you are buying on, and what to check for each.
Nueva Ecija is flat, low, and fed by rivers, which is exactly what rice needs and exactly what floods. Two towns in the same province can sit in very different flood zones, one reached only by a rare storm and one reached by a common one. Here is what to check on a Nueva Ecija address, why frequency matters more than depth on flat ground, and why the province has no storm surge layer at all.
In Bohol, the North Bohol Fault, liquefaction risk near the coast, flooding along major rivers, and storm surge in Panglao are the hazards to screen before you commit to any property. Here is what the maps show.
Leyte province sits in one of the Philippines' most active hazard corridors. Here is what property buyers need to check before committing to any lot in the province.
Iligan City in Northern Mindanao is a growing real estate market with a flood and landslide history that every buyer should understand. Here is what the hazard layers show and what to check before you commit.
Muntinlupa sits at the southern tip of Metro Manila, with Laguna de Bay to the east and the West Valley Fault nearby. Here is what to check before you buy.
Tagaytay is one of the most popular places to buy property near Manila, but sitting on the rim of the Taal Volcano system means the hazard picture is very different from most Philippine cities.
Bataan's coastline on Manila Bay and its rugged interior create two very different hazard profiles. Check flood, storm surge, landslide, and faults for the specific lot before you commit.
A hazard checklist for Zamboanga City buyers: active faults in the Zamboanga Peninsula, storm surge along the Basilan Strait and Moro Gulf coast, river flooding near the Tumaga River, and landslide risk in hilly barangays.
GenSan is one of Mindanao's fastest-growing cities, but flood risk, seismic hazard, and coastal exposure vary sharply across barangays. Here is what to check first.
Palawan is one of the Philippines' most sought-after property markets. Before you buy, here is what the flood, storm surge, active fault, and landslide layers show for the island.
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© 2026 CheckHazard. Hazard data: UP NOAH Center/DOST, PHIVOLCS/GEM, OpenStreetMap contributors, PSA NAMRIA. CheckHazard does not replace a professional geotechnical or engineering survey.
