The Philippine Fault Zone which trends n40°w is widely accepted as a major strike-slip fault comparable to the San Andreas fault.
What are the fault found 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 is the central Philippine Fault?
The central Philippine Fault Zone is found to be the locus of great earthquakes, a transition zone with slow slip and creep activity. … The Masbate fault is the central part with large and medium earthquakes accompanied by unusually large ground rupture.
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 . …
What is the big one in the Philippines?
The “Big One” is a worst-case scenario of a 7.2-magnitude earthquake from the West Valley Fault, a 100-kilometer fault that runs through six cities in Metro Manila and nearby provinces. A tsunami is also foreseen in the scenario set by the Philippine Institute of Volcanology and Seismology (PHIVOLCS).
What are the two types of fault?
There are three different types of faults: Normal, Reverse, and Transcurrent (Strike-Slip).
- Normal faults form when the hanging wall drops down. …
- Reverse faults form when the hanging wall moves up. …
- Transcurrent or Strike-slip faults have walls that move sideways, not up or down.
Is it safe to live near a fault line?
Living near fault lines is inherently dangerous but difficult to avoid. Evidence suggests that humans congregating around tectonic faults (areas where the plates that make up the lithosphere above the Earth’s mantle travel and sometimes cause earthquakes) was no accident.
What are the five faults in the Philippines?
There are five active fault lines in the country, these are the Western Philippine Fault, the Eastern Philippine Fault; the South of Mindanao Fault, the Central Philippine Fault, and the most famous one the Marikina Valley Fault or the West Valley Fault.