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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, running through the provinces of Rizal, the Metro Manila cities of Quezon, Marikina, Pasig, Taguig and Muntinlupa, and the provinces of Cavite and Laguna, before ending in ...
The Philippine Fault Zone (PFZ) extends 1200 km across the Philippine archipelago behind the convergent boundary of the Philippine Trench and the subduction of the Philippine Sea plate. [3] This left-lateral strike-slip fault extends NW-SE (N30 – 40 W) accommodating the lateral oblique motion of the subducting Philippine Sea plate with ...
The Abra River Fault is a northern extension of the Philippine Fault Zone. As it runs through Luzon, it splays into three branches that runs beneath the southern Sierra Madre mountains, the Central Cordillera Mountains before terminating at the northern coast of the island. The three branches strike north–south and are named (west to east ...
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 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.
One of the largest historical earthquake on the fault zone was the 1990 Luzon M s 7.8 event that left nearly 2,000 people dead or missing. The same part of the fault zone is thought to have ruptured in the 1645 Luzon earthquake. [7] Further south the fault ruptured during the 1973 Ragay Gulf earthquake.
More than 100 pages use this file. The following list shows the first 100 pages that use this file only. A full list is available.. 1645 Luzon earthquake; Abra River; Abulog
It is approximately 40 km wide and perpendicularly bisects the Luzon Volcanic Arc. The corridor is bounded by two major faults, the Philippine Fault to the west and the Sibuyan-Verde Passage Fault to the east. [1] The Macolod Corridor is a relatively young feature, with volcanic activity dating back to the Quaternary (less than 2.58 million ...