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  2. Soil liquefaction - Wikipedia

    en.wikipedia.org/wiki/Soil_liquefaction

    A liquefaction susceptibility map – excerpt of USGS map for the San Francisco Bay Area. Many areas of concern in this region are also densely urbanized. The other common observation is land instability – cracking and movement of the ground down slope or towards unsupported margins of rivers, streams, or the coast.

  3. PHIVOLCS earthquake intensity scale - Wikipedia

    en.wikipedia.org/wiki/PHIVOLCS_Earthquake...

    PHIVOLCS cites seismic scale specifically developed for the Philippine setting, the different geography of each country and other "geological considerations" led to the development of PEIS. The scale measures the effect of an earthquake on a given area based on its relative effect to people, structures and objects in the surroundings.

  4. Seismic microzonation - Wikipedia

    en.wikipedia.org/wiki/Seismic_microzonation

    Seismic microzonation is defined as the process of subdividing a potential seismic or earthquake prone area into zones with respect to some geological and geophysical characteristics of the sites such as ground shaking, liquefaction susceptibility, landslide and rock fall hazard, earthquake-related flooding, so that seismic hazards at different locations within the area can correctly be ...

  5. Subduction tectonics of the Philippines - Wikipedia

    en.wikipedia.org/wiki/Subduction_tectonics_of...

    The Philippine propagates northwards in the segment of East Luzon Trench. [14] [24] [23] The age of the Philippine Trench is not well-defined; estimates range from 5 Ma or younger, [28] [1] to 8–9 Ma. [29] [22] However, researchers agree that the Philippine Trench is the youngest trench in the Philippine subduction system. [19] [30] [6] [1]

  6. File:Philippines relief location map (Luzon mainland).svg

    en.wikipedia.org/wiki/File:Philippines_relief...

    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

  7. Philippine Mobile Belt - Wikipedia

    en.wikipedia.org/wiki/Philippine_Mobile_Belt

    Major physiographic elements of the Philippine Mobile Belt Puerto Princesa Subterranean River National Park marker describing the geologic history of the Philippines. In the geology of the Philippines, the Philippine Mobile Belt is a complex portion of the tectonic boundary between the Eurasian plate and the Philippine Sea plate, comprising most of the country of the Philippines.

  8. Marikina Valley fault system - Wikipedia

    en.wikipedia.org/wiki/Marikina_Valley_Fault_System

    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 ...

  9. Philippine fault system - Wikipedia

    en.wikipedia.org/wiki/Philippine_Fault_System

    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.