Volcanic Proximity

This layer measures the distance from your property to the nearest of the country's active volcanoes. Distance maps directly to the kind of volcanic hazard you are exposed to: pyroclastic flows and lahars close in, ashfall further out.

It is a proximity layer, not a forecast. It does not predict the next eruption; it tells you which hazard band a property sits in so the risk is on the table when you buy, build, or insure.

The Philippines has 24 active volcanoes. Mount Pinatubo's 1991 eruption was one of the largest of the 20th century. Taal's 2020 eruption blanketed nearby towns in ash and forced mass evacuations. Mayon erupts regularly.

Volcanic proximity also shapes insurance. Many homeowner policies treat the danger zone, the ashfall band, and the outer band very differently, so where your lot falls can decide what coverage you can even buy.

We measure the straight-line distance from your point to the 24 active volcanoes tracked by PHIVOLCS and return the nearest one.

That distance lands in one of four bands, from the close-in danger zone out to the range where no volcanic loading is expected.

Volcano locations come from PHIVOLCS, the government's volcanology and seismology agency.

The distance bands follow PHIVOLCS guidance on danger zones and ashfall reach, the same framework used for evacuation planning.