Is there a fault line in Marikina?
In Metro Manila, the Philippine Institute of Volcanology and Seismology (Phivolcs) watches the Marikina Valley Fault System. Also known as Marikina Valley Fault or West Valley Fault, this is a fault system that runs through major cities in the metro and nearby provinces.
Where is Marikina Valley Fault?
The most significant, historic earthquake zone (geological fault) in the Philippines is located just 10km East of Manila City and is known as the “Marikina Valley Fault System” or, frequently, “Marikina Fault”.
What will happen if the Marikina West Valley Fault move?
The study’s worst-case scenario indicated that a 7.2-magnitude earthquake caused by the movement of the West Valley Fault will cause 40 percent of all residential buildings, and 35 percent of public facilities such as schools and hospitals, to collapse or be heavily damaged.
What is the active fault in Marikina?
Marikina Valley fault
The Marikina Valley fault (MVF) is located at ∼90 km east of the hypocenter of the 2019 Castillejos earthquake (PHIVOLCS, 1999; Rimando and Knuepfer, 2006). The MVF is a part of the Philippine fault zone (PFZ) system on the Luzon Island, which accommodates the relative movement of the surrounding subduction systems.
What type of fault is Marikina Valley fault?
dextral strike-slip fault
The 135-km long Marikina Valley fault system (MVFS) is an active dextral strike-slip fault that transects the eastern part of metro Manila, Luzon Island, Philippines.
What are the places included in West Valley Fault?
The WVF is approximately 100-km and transects portions of Quezon City, Marikina City, Pasig City, Makati City, Taguig City, Muntinlupa City, and the provinces of Bulacan, Rizal, Laguna, and Cavite.
What areas will be affected by the big one?
The ‘Big One’ is a hypothetical earthquake of magnitude ~8 or greater that is expected to happen along the SAF. Such a quake will produce devastation to human civilization within about 50-100 miles of the SAF quake zone, especially in urban areas like Palm Springs, Los Angeles and San Francisco.
Why is Marikina prone to earthquake?
The West Fault is capable of producing large scale earthquakes on its active phases with a magnitude of 7 or higher. The eastern segment, known as East Valley Fault (EVF), moves in an oblique dextral motion. It extends to about 17.24 kilometers (10.71 mi) from Rodriguez to San Mateo in the province of Rizal.
How many km away from fault line is safe?
Combining these data with the close relation between the damage zone of surface construction and the spatial position of an active fault, the authors propose that a minimum distance (safety distance) of 30m away from the active fault is essentially required for constructions to prevent the effect of faulting.
Is Marikina Valley Fault an active fault?
The 135-km long Marikina Valley fault system (MVFS) is an active dextral strike-slip fault that transects the eastern part of metro Manila, Luzon Island, Philippines.
What type of fault is Marikina Valley Fault?
right-lateral strike-slip 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.
Is the Marikina Valley Fault System an active fault?
There are five active fault lines in the country, these are the Western Philippine Fault, the Eastern Philippine Fault; the South of Mindanao Fault, the Central Philippine Fault, and the most famous one the Marikina Valley Fault or the West Valley Fault.
What type of fault is Marikina Valley Fault System?
Where does West Valley Fault start and end?
The Marikina fault line, also known as the West Valley Fault, starts from the Sierra Madre and runs through Bulacan, Rodriguez, Rizal, Quezon City, the eastern side of Metro Manila including Pasig, Taguig, Muntinlupa, San Pedro, and Sta. Rosa in Laguna and ends in Carmona, Cavite.
Where will the big one hit Philippines?
According to the Philippine Institute of Volcanology and Seismology (Phivolcs), Metro Manila, parts of Bulacan, Rizal, Laguna, Cavite and even parts of Batangas might be affected by an Intensity 8 shaking.
What is the Marikina Valley fault line?
A primary concern to most is the Philippine Fault Zone or the Marikina Valley Fault Line, which supposedly traverses through major parts of Metro Manila, including Marikina, Quezon City, Pasig and Taguig.
How big is the earthquake in Marikina Valley?
Marikina Valley Fault System. The fault possesses a threat of a large scale earthquake with an estimated magnitude between 6–7 and as high as 7.6 to Metro Manila and surrounding provinces with death toll predicted to be as high as 35,000 and some 120,000 or higher injured and more than three million needed to be evacuated.
How many houses are affected by the Philippine Fault Line?
99 private villages and subdivisions inside 80 barangays are traversed directly by the fault and endangers 6,331 buildings in a span of 2,964.10 square kilometers (1,144.45 sq mi), to where majority are houses with 19 schools included in the list. ^ a b c d e fMalicdem, Ervin (16 August 2017).