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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 ...
On Luzon, the fault zone splays out into a number of different faults, including the Digdig Fault. 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]
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 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. Second, the corridor is located at the junction of several tectonic elements, which makes it an ideal place to study the tectonic processes that affect the Philippines.
The three branches strike north–south and are named (west to east) the Vigan-Agao Fault, the Abra River Fault and the Digdig Fault, respectively. The Philippine Fault Zone is associated with Pliocene and Quaternary uplift of the Cordillera Mountains. The Abra River and Digdig faults display pure strike-slip displacement, while the Vigan-Agao ...
Recurring episodic uplifts along the West Marikina Valley Fault [3] caused the two to break up. Interaction between Manila Bay and Laguna de Bay today occurs only through the Pasig River . The bay was the setting for the Battle of Manila Bay in 1898, in which American troops led by Commodore George Dewey seized the area.
A hole in a 600-mile-long fault line has been discovered at the bottom of the Pacific ocean - and it could be the trigger of a magnitude-9 earthquake on the US coast. Just outside of Oregon ...
The west segment of the Marikina Valley Fault System, the West Valley Fault (WVF) cuts through parts of Muntinlupa [29] and moves in a predominantly dextral strike-slip motion. [30] The West Valley Fault is capable of producing large scale earthquakes on its active phases with a magnitude of 7 or higher. [29]