Marikina Valley Fault System, Fault line in the Philippines
The Marikina Valley Fault System is an active fault system that can produce large-scale earthquakes.
This fault system has a history of causing significant seismic activity in the region over the centuries.
Awareness of the fault has deeply influenced local development plans and building codes.
Residents and structures in Metro Manila are affected by its proximity to this fault system.
The West Valley Fault capable of producing a magnitude 7+ earthquake is feared as the 'Big One'.
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