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Explainers, methodology deep-dives, and practical guides on Philippine property hazards. Written for the decisions that matter.
130 articles published
Tropical Storm Ondoy dropped more than a month of rain on Metro Manila in a single day. Seventeen years later it is still the clearest lesson in why a flood map beats a memory.
Negros Occidental combines a low coastal plain, river systems that drain the sugar lands, and Kanlaon on its eastern boundary. Here is what to screen before you commit to a property.
The July 2022 Abra earthquake damaged buildings across the northern mountains and triggered landslides on steep ground. For a buyer there, shaking and slope are one conversation, not two. Here is what to screen.
Most storm preparation advice is about the days before a storm. This is the version for the weeks before a season: an hour of checking that makes every later week easier, starting with knowing what your address is actually exposed to.
Two small island provinces, two different hazard pictures. Camiguin is volcanic with steep ground; Siquijor is smaller and mostly coastal. Here is what to screen, and where the mapped data thins out.
Camarines Norte faces the Pacific in the part of Bicol that storms often reach first, with short rivers running down to the coast. Here is what a hazard screening checks for an address there.
A landlord who knows the flood exposure of a unit can prepare for it, price it, and tell the tenant. A landlord who does not find out until the water arrives has a damaged property and an angry tenant. Here is the case for screening what you rent out.
Cotabato City sits on low ground near the mouth of the Rio Grande de Mindanao, at the end of a very large river basin. For a buyer there, flooding is the first conversation. Here is what to screen.
Finding out a mapped active fault runs near a house you already own is unsettling. It is also actionable. Here is what the distance means, what it does not, and the order to do things in.
Pasay and Las Piñas sit low along Manila Bay, where coastal water, rain flooding, and soft ground meet. Here is what a hazard screening checks for an address in either city.
Buyers screen the lot and forget the route to it. A cut road, a flooded low point, or a single bridge can isolate a perfectly sound house for days. Here is how to screen access, not just the property.
Southern Leyte is steep, wet, and crossed by a major fault system. The 2006 Guinsaugon landslide is the reason slope deserves your attention first here. Here is what a hazard screening checks.
Registered with the Bureau of Internal Revenue (BIR). RSN 045RC20220000005083.
© 2026 CheckHazard. Hazard data: UP NOAH Center/DOST, PHIVOLCS/GEM, OpenStreetMap contributors, PSA NAMRIA. CheckHazard does not replace a professional geotechnical or engineering survey.
