Marikina Valley Fault System' the west segment, known as the West Valley Fault (WVF) is one of the two major fault segments of the Valley Fault System which runs through the cities of Marikina, Pasig and Muntinlupa[REF] and moves in a dominantly dextral strike-slip motion [REF].
Alabang is the business district of the city where the tallest structures of the city be located.