This is part two of our coverage on the Valley Fault System – more commonly known as Marikina Valley Fault. We’ve previously discussed about about what it is (correcting the myths) and the destruction that it might bring.
The Philippine Institute of Volcanology and Seismology (Phivolcs) recently released the Valley Fault System Atlas. Its contains the result of years of study by the agency which provides detailed information about the VFS through maps of varying scales. I’ve provided a link below where you can download a copy of the VFS Atlas.
To refresh our memory, there are two segments of the Valley Fault System, the West Valley Fault (WVF) and the East Valley Fault (EVF). The East Valley Fault is about 10 kilometers long and traverses the municipalities of Rodriguez and San Mateo in Rizal.
Meanwhile, the West Valley Fault is longer, 100 kilometers long that traverses several cities and municipalities in Bulacan, Metro Manila, Laguna, and Cavite.
Now, lets take a look in detail where exactly the Valley Fault system runs through in Marikina for you to check if you are in the path of destruction.
The following Barangays and specific places sits on top of the West Valley Fault (from North to South):
- Barangay Tumana: Northern portion of Loyola Grand Villas
- Barangay Malanday: Southern Portuon of Loyola Grand Villas
- Barangay Tanong: Paraguay St., Don G. Puyat St., San Jose Manggagawa Chapel, Loyola Subdivision,
- Barangay Barangka: Dela Costa Homes, Barangka Elementary School, Barangka Barangay Hall, Riverbanks Center Mall, and the community at the Back of Riverbanks Center.
- Barangay Industrial Valley Complex: Portions of Apitong St., Kamagong St, Pres. Osmena St., Pres. Magsaysay St., Pres. Quirino St., Major Dizon St., Pres. Emilio Aquinaldo, Pres. Roxas, Pres. Quezon,
What does the red (Fault) lines mean?
However, even if other Marikina Barangays are not in the immediate path of the Marikina Valley Fault, they will still incur damages as shown in the report below.
The above report estimates that around 35,000 residential houses and 2,500 commercial buildings will be damaged within Marikina City. Take note, this study was done in 2004. Many residential and commercial buildings have been built after the report was released.
Also, according to a news article posted online, a study conducted by Japan International Cooperation Agency (JICA) at Phillippine Institute of Volcanology and Seismology (PHIVOLCS) estimates that around 3,000 residents of Marikina city might die due to the earthquake.
AABOT sa 3,000 residente sa Marikina City ang posibleng mamatay kung sakaling magkaroon ng 7.2 magnitude na lindol mula sa West Valley Fault.
Ayon kay Camille Bianca Calpito ng Marikina City Disaster Risk Reduction and Management Office (MCDRRMO), ang bilang ng mga casualty ay nairekord batay sa pag-aaral na isinagawa ng Japan International Cooperation Agency (JICA) at Phillippine Institute of Volcanology and Seismology (PHIVOLCS).
Sinabi ni Calpito na ginamit ng mga opisyales ang Rapid Earthquake Assessment System Software (RADES) na isang uri ng software na kung saan makikita ang laki ng pinsala mula sa isang malakas na lindol.
The key to survival is PREPARATION and knowing what to do DURING, and AFTER the disaster.
Download the VFS Atlas (note: these are the same files. I just provided option where you can download the file):
- Valley Fault System Atlas from Phivolcs
- Valley Fault System Atlas from Rappler
- Valley Fault System Atlas from NDRRMC