How to Check If Your House Is Near a Fault Line
A 2-minute, step-by-step guide using PHIVOLCS FaultFinder, HazardHunterPH, and our live fault map.
Earthquake Safety: What to Do Before, During & After a Quake
Drop, Cover, and Hold On — plus go-bag essentials, a family plan, and what to do once the shaking stops.
The Strongest Earthquakes in the Philippines Since 2020
From the 2026 magnitude 7.8 Sarangani quake to the 2020 Masbate quake — the biggest of the decade so far, ranked.
Earthquakes in Philippine History: A Timeline of the Deadliest Quakes
From the 1645 Luzon quake and the 1863 fall of Manila to the 1976 Moro Gulf tsunami and 2013 Bohol — centuries of disasters.
Why Does the Philippines Have So Many Earthquakes?
The Ring of Fire, colliding tectonic plates, and trenches on both sides — the geology behind ~20 quakes a day.
Philippine Fault Lines Explained: The West Valley Fault & "The Big One"
The 1,200-km Philippine Fault Zone, the fault running beneath Metro Manila, and what "The Big One" actually projects.
Magnitude vs. Intensity: What the Numbers Really Mean
Why a "magnitude 6" feels very different depending on where you stand — and the PHIVOLCS Intensity Scale explained.