Latest
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Special Report: Cities Most at Risk If the Big One Strikes the Philippines
Not all cities face the same earthquake hazards during the Big One. This Special Report examines how active faults, expected ground shaking, liquefaction, and urban exposure interact across Metro Manila and nearby provinces using official government data and established scientific studies.
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WestValleyFault.com Weekly Earthquake & Preparedness Intelligence Report (Issue #006): July 25 – 31, 2026
This week’s report examines the transition to earthquake-safe steel standards, presidential prioritization of the New Philippine Building Act and recovery commitments for disaster-affected regions. It also covers satellite-derived disaster information, school earthquake drills and three magnitude 5.0+ earthquakes listed by PHIVOLCS.

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Special Reports
List of Establishments Located Near the West Valley Fault Line
Featured Posts
The West Valley Fault is one of the Philippines’ most significant geological threats, capable of generating a magnitude 7.2 earthquake known as “The Big One,” which could severely impact Metro Manila and nearby densely populated areas. Although experts cannot predict exactly when such an earthquake will occur, they emphasize the importance of preparedness and awareness. This guide examines the science behind the West Valley Fault, the Metro Manila Earthquake Scenario, the areas most at risk, lessons from past destructive earthquakes, expert insights on The Big One, practical preparedness measures, and answers to frequently asked questions about one of the country’s most serious natural hazards.





















































