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This work is in the public domain in the Philippines and possibly other jurisdictions because it is a work created by an officer or employee of the Government of the Philippines or any of its subdivisions and instrumentalities, including government-owned and/or controlled corporations, as part of their regularly prescribed official duties ...
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 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.
The 2017 Surigao earthquake occurred on February 10, 2017, at 10:03 PM , with a surface-wave magnitude of 6.7 off the coast of Surigao del Norte in the Philippines. According to the PHIVOLCS earthquake intensity scale the earthquake was an Intensity VII ( Destructive ) earthquake at maximum.
Another model suggests that the corridor is a pull-apart zone formed by the interaction of the Philippine Fault and the Sibuyan-Verde Passage Fault. [3] The Macolod Corridor is an important geological feature for several reasons. First, it is a zone of active volcanism, which poses a significant hazard to the surrounding population.
Along this trench the oceanic crust of the Sunda Plate beneath the Celebes Sea is being subducted beneath the Philippines Mobile Belt. It forms part of a linked set of trenches along the western side of the Philippines formed over east-dipping subduction zones, including the Manila Trench and the Negros Trench . [ 1 ]
The Lubang-Verde Passage fault system is a major strike-slip fault system located offshore between the Batangas and Mindoro Island in the Philippines. [ 1 ] Background
The 1645 Luzon earthquake was one of the most destructive earthquakes to hit the Philippines. It occurred on November 30 at about 08:00 PM local time on Luzon Island in the northern part of the country. The island was struck by a 7.5 M s tremor produced by the San Manuel and Gabaldon Faults (Nueva Ecija) in the central section of the island. [1]