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The Philippine Fault System is a major inter-related system of geological faults throughout the whole of the Philippine Archipelago, [ 1 ] primarily caused by tectonic forces compressing the Philippines into what geophysicists call the Philippine Mobile Belt. [ 2 ] Some notable Philippine faults include the Guinayangan, Masbate and Leyte faults.
The Marikina Valley Fault System, also known as the Valley Fault System (VFS), is a dominantly right-lateral strike-slip fault system in Luzon, Philippines. [2] It extends from Doña Remedios Trinidad, Bulacan in the north and runs through the provinces of Rizal, and the Metro Manila cities of Quezon, Marikina, Pasig, Taguig and Muntinlupa, and the provinces of Cavite and Laguna that ends in ...
The Philippine archipelago is also cut along its length by a left-lateral strike-slip fault known as the Philippine Fault. [5] [1] Active subduction disturbs the Earth's crust, leading to volcanic activity, earthquakes, and tsunamis, making the Philippines one of the most geologically hazard-prone regions on Earth. [4] [6]
The fault follows the northwest-southeast alignment of Verde and Lubang islands and is primarily considered a left-lateral fault, meaning the two sides of the fault move horizontally past each other in opposite directions. This geological feature is associated with seismic activity, giving rise to earthquakes of varying magnitudes. Notably, on ...
The Philippine Trench (also called the Philippine Deep, Mindanao Trench, and the Mindanao Deep) is a submarine trench to the east of the Philippines. The trench is located in the Philippine sea of the western North Pacific Ocean and continues NNW-SSE. [ 1 ] It has a length of approximately 1,320 kilometres (820 miles) and a width of about 30 km ...
North Bohol fault. The North Bohol fault or Inabanga fault is a reverse fault located at Anonang, Inabanga which was found on 15 October 2013 during the Bohol earthquake. According to the Philippine Institute of Volcanology and Seismology, a new fault occurs only once in a century. The North Bohol fault, shaped as a hanging wall and also known ...
The event was a result of strike-slip movements along the Philippine Fault and the Digdig Fault within the Philippine Fault System. The earthquake's epicenter was near the town of Rizal, Nueva Ecija, northeast of Cabanatuan. [6] An estimated 1,621 people were killed, [7] [8] most of the fatalities located in Central Luzon and the Cordillera region.
113 dead, [ 4 ][ 5 ] 112 injured. The 2012 Negros earthquake occurred on February 6 at 11:49 PST, with a body wave magnitude of 6.7 and a maximum intensity of VII (Destructive) off the coast of Negros Oriental, Philippines. The epicenter of the thrust fault earthquake [ 6 ] was approximately 72 kilometres (45 mi) north of Negros Oriental's ...