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Philippines Fault Lines and Trenches

This is the map of the fault lines and trenches in the Philippines.

Fault is a planar fracture in a volume of rock, across which there has been significant displacement along the fractures as a result of earth movement. This earth movement is what we called tectonic forces that compress the land.

Example of a fault line is the San Andreas fault in the Carrizo Plain, Central California, USA which can be seen in the photo below.
Example of Fault Line
San Andreas fault aerial view

Faults in the Philippines

In the Philippines, the main fault runs most of the length of the country. This is called the Philippine fault. It extends from Bangui, Ilocos Norte in the north, crosses Zambales, Digdig, Central Marinduque, and traverses Central Leyte province and up to Mati.

In northwest Luzon, the fault has become braided or composed of many strands and is no longer single. The Philippine Fault, probably active since the Middle Miocene is a recent example of the north-south strike-slip fault zones of Luzon.

Following the major 1990 Luzon earthquake, scientists reconsidered their fault models and following the lead of Pinet and Stephan (1989), thought it likely that Benham Plateau is still displacing central Luzon and the Philippine Fault System to the west, and so caused the 1990 Luzon earthquake. The 20 second or 50 second wave in the 1990 quake developed a new east-west sub-fault, which terminated disastrously at Baguio.

Fault Lines and Trenches in the Philippines
Map of Faults and Trenches in the Philippines

List of Faults in the Philippines
  1. Bangui Fault
  2. West Ilocos Fault System
  3. Dummon River Fault Sytem
  4. Abra River Fault
  5. Divalacan Fault
  6. Tubao Fault
  7. Casiguran Fault
  8. East Zamabales Fault
  9. Iba Fault
  10. Digdig Fault
  11. Infanta Fault
  12. Guinyangan Fault
  13. Valley Fault System
  14. Central Marinduque Fault
  15. Lubang Fault
  16. Sibuyan Fault
  17. Central Mindoro Fault
  18. Aglubang River Fault
  19. Lake Bato Lineament
  20. Southern Mindoro Fault
  21. Northern Samar Lineament
  22. Tablas Fault
  23. Masbate Fault
  24. Southern Samar Lineament
  25. West Panay Fault
  26. Central Negros Fault
  27. Cebu Linemanet
  28. Central Leyte Fault
  29. East Bohol Fault
  30. Cabanglasan Fault
  31. Tagoloan River Fault
  32. Lanao Fault System
  33. Davao River Fault
  34. Lianga Fault
  35. Eastern Mindanao Fault
  36. Central Mindanao Fault
  37. Mati Fault
  38. Tangbulan Fault
  39. Mindanao Fault Daguma Extension
  40. Zamboanga Fault System

Trenches in the Philippines

The Philippine Trench (also called Philippine Deep, Mindanao Trench, and Mindanao Deep) is an underwater trench to the east of the Philippines. It has a length of approximately 1,320 km (820 mi) and a width of about 30 km (19 mi) from the centre of the Philippine island of Luzon trending southeast to the northern Maluku island of Halmahera in Indonesia. Its deepest point, the Galathea Depth, has a depth of 10,540 metres (5,760 fathoms; 34,600 feet). Before 1951, when an expedition of HMS Challenger measured a depth of 10,863 metres (5,940 fathoms; 35,640 feet) in the Mariana Trench, the Galathea Depth was the greatest known ocean depth. Now, it's the deepest point in the country and the 3rd in the world.

Immediately to the north of the Philippine Trench is the East Luzon Trench. They are separated, with their continuity interrupted and displaced, by Benham Plateau on the Philippine Sea Plate.

The Philippine Trench is the result of a collision of tectonic plates. The Philippine Sea Plate is subducting under the Philippine Mobile Belt at the rate of about 16 cm (6.3 in) per year.

List of Trenches in the Philippines
  1. East Luzon Trench/Trough
  2. Manila Trench
  3. Negros Trench
  4. Sulu Trench
  5. Cotabato Trench
  6. Philippine Trench

Is your place located along the fault lines? What's your plan if the fault will move or if an earthquake will hit your place and destroy your home?


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"Philippines Fault Lines and Trenches" was written by under the Philippine Government category. It has been read 59466 times and generated 2 comments. The article was created on and updated on 20 October 2013.
Total comments : 2
Jensery Ocampo Briones   (27 January 2015 5:54 PM)

different faults in the philippines ??

resell   (21 October 2013 3:49 PM)

my plan is to out the place as soon as possible, not for my safety but my whole family i dont want to experience that kind of disaster, i am scared probably .
i know god have a purpoosed each us if he is doing this kind of things, maybe he wants to wake up the people in the phillipines, for the greedy goverment oficial i hope they eyes open to see this happpend, her wealth are nothing if this thing is happend all of has are suffer for this.

god i know your always there for us pleased save me if i deserve.