Best answer: What is the meaning of Philippine fault zone?

The 1,200-km-long Philippine fault zone (PFZ) is a major tectonic feature that transects the whole Philippine archipelago from northwestern Luzon to southeastern Mindanao. … The high seismic risk posed by this fault zone requires a large-scale active faults map, a fundamental data set for seismic hazard mitigation.

What is a fault zone?

A fault is a fracture or zone of fractures between two blocks of rock. Faults allow the blocks to move relative to each other. This movement may occur rapidly, in the form of an earthquake – or may occur slowly, in the form of creep. … The fault surface can be horizontal or vertical or some arbitrary angle in between.

How is Philippine Fault Zone formed?

The Philippine Fault Zone (PFZ) formed because of oblique motion of the Philippines Sea plate relative to the Eurasia plate [10, 11, 12]. PFZ is an active left lateral strike-slip fault system extending 1600-km from the Mindanao to the Luzon Island [12]. …

What are the earthquake zone in the Philippines?

The central Philippine Fault Zone is found to be the locus of great earthquakes, a transition zone with slow slip and creep activity. This is based on the analysis and correlation of seismic historic data and detailed documentation of recent seismic events in the region.

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What are the 5 major fault lines in the Philippines?

There are five active fault lines in the country namely the Western Philippine Fault, the Eastern Philippine Fault, the South of Mindanao Fault, Central Philippine Fault and the Marikina/Valley Fault System.

What are the three types of fault?

There are three main types of fault which can cause earthquakes: normal, reverse (thrust) and strike-slip. Figure 1 shows the types of faults that can cause earthquakes. Figures 2 and 3 show the location of large earthquakes over the past few decades.

What are the 4 types of faults?

There are four types of faulting — normal, reverse, strike-slip, and oblique. A normal fault is one in which the rocks above the fault plane, or hanging wall, move down relative to the rocks below the fault plane, or footwall. A reverse fault is one in which the hanging wall moves up relative to the footwall.

What type of fault is the central Philippine fault zone?

The Masbate fault is the central part with large and medium earthquakes accompanied by unusually large ground rupture. The north Central Leyte fault and the south Central Leyte fault, on the other hand, are characterized by aseismic creep and medium-sized events, usually with clusters of foreshocks, respectively.

Why is it important to know the location of fault in the Philippines?

A rapid movement of a fault line may produce a powerful energy that can trigger a strong earthquake. … It is important to know were are the locations of the faults, to be aware and prepared when earthquake occurs. because faults are velnerable to earthquake.

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