Marikina Fault West Valley Point in Metro Manila- The Big One

Monday, 10 September 2012 0 comments

What is West Valley Point in Metro Manila and The Big One?

It was tackle on Brigada from GMA News TV about the possibility of the magnitude 7.2 Earthquake in Metro Manila due to West Valley Point.

According to USGS, the first 14C-based paleoseismic study of an active fault in The Philippines shows that a right-lateral fault on the northeast edge of metropolitan Manila poses a greater seismic hazard than previously thought. Stratigraphic, soil, and 14C data from exposures across the northern part of the west Marikina Valley fault indicate a recurrence interval of 200-400 years for magnitude 6-7 earthquakes on the fault.

Here are some tweeted information from Brigada GMA News TV:
  • Maaaring gumalaw ang West Valley Fault sa Metro Manila. Ang tawag sa malaking sakunang dadalhin nito--The Big One. 
  • Fault ang tawag sa dalawang nag-uumpang plate ng lupa kaya nakararamdam tayo ng paglindol. 
  • Ayon pa sa pag-aaral, 1700 pa nang huling gumalaw ang West Valley Fault. 
  • Phivolcs: Sa paggalaw ng West Valley Fault aabot sa kalahating milyong bahay ang mapipinsala, 9 tulay ang masisira. 
  • Aabot daw sa 100,000 katao ang masusugatan at 35,000 ang posibleng mamatay sa paggalaw ng West Valley Fault. 
  • Pero ang kahabaan ng West Valley Fault sa Pasig, tinayuan na ng apartment, cell site tower, commercial building at maging motel. 
  • Phivolcs: Dapat may limang metrong layo o “Buffer Zone” sa magkabilang bahagi ng fault line sa anumang isktraktura o bahay. 
Map showing the locations of the east and west Marikina Valley faults, which strike through the metropolitan Manila area (Metro Manila, light shading) of central Luzon. The Maislap trench site is on a northeast-trending splay of the west Marikina Valley fault in the northern part of the Marikina Valley. B) Map of the trench site, showing fault traces and trench and stream exposures. Map source:USGS
  • Ang @MMDA, may naihanda na raw para sa mahigit 12 milyong residente ng Metro Manila na possibleng maapektuhan ng lindol. 
  • Naglunsad na rin ang @MMDA ng “Oplan Yakal" para matukoy ang pwedeng maging evacuation centers sa panahon ng sakuna sa Maynila. 
  • Pero ang mas kinakatakot ng NDRRMC kapag dumating ang "The Big One" na sakuna ay ang malawakang nakawan ng possible ring mangyari.
  • Walang makapagsasabi ng tiyak na araw kung kalian mararamdaman ang bagsik ng West Valley Fault o ang delubyong "The Big One".
We can only pray and hope that a disaster like this will not happen with the grace of our Lord Jesus Christ! God keep our land sound and safe!
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