The Valley Fault System (VFS), an active fault in the Greater Metro Manila Area (GMMA), consists of two segments: the East Valley Fault (EVS) and the West Valley Fault (WVF).
East Valley Fault
The EVF is about 10-km long and traverses the municipalities of Rodriguez and San Mateo in Rizal Province. This fault can generate an earthquake with a magnitude of 6.2 that may result to a very destructive ground shaking, with intensity VIII on the PHILVOCS Earthquake Intensity Scale (PEIS), in the epicentral area.
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. This fault can generate an earthquake with a magnitude of 7.2 that may result to a very destructive ground shaking, with intensity VIII on the PEIS, in Metro Manila and nearby provinces.
The fault, which has moved 4 times in the last 1,400 years, moves roughly every 400 years, according to Phivolcs Director Dr. Renato U. Solidum, Jr.
In case of a magnitude 7.2 earthquake from the West Valley the fault, 31,000 to 33,500 people could die, according to estimates based on previous studies conducted by PHIVOLCS in partnership with the the Metro Manila Development Authority, Japan International Cooperation Agency, and Geosciences Australia.
List of Barangays Traversed by the West Valley Fault
METRO MANILA (NCR)
Quezon City:
- Bagong Silangan
- Bagumbayan
- Batasan Hills
- Blue Ridge B
- Libis
- Matandang Balara
- Pansol
- White Plains
- Ugong Norte
- Loyola Heights
- Pasong Putik Proper (Pasong Putik)
- Payatas
Marikina City:
- Barangka
- Industrial Valley
- Malanday
- Tumana
Pasig City:
- Bagong Ilog
- Ugong
Makati City:
- East Rembo
- Pembo
- Rizal
- Comembo
Taguig City:
- Bagumbayan
- Bagong Tanyag
- Upper Bicutan
- Central Bicutan
- Lower Bicutan
- Maharlika Village
- Pinagsama
- North Signal Village
- Central Signal Village
- South Signal Village
- Ususan
- South Daang Hari
Muntinlupa City:
- Alabang
- Bayanan
- Buli
- Cupang
- Poblacion
- Putatan
- Sucat
- Tunasan
BULACAN
- San Jose Del Monte City:
- San Isidro
- Ciudad Real
- San Roque
- Norzagaray:
- San Lorenzo
- Doña Remedios Trinidad:
- Camachin
- Kabayunan
- Sapang Bulak
- Bayabas
- Camachile
- Pulong Sampalok
LAGUNA
- San Pedro:
- Calendola
- Gsis
- Sampaguita Village
- San Antonio
- San Vicente
- Riverside
- United Bayanihan
- Biñan:
- Biñan (Poblacion)
- Malamig
- San Francisco (Halang)
- Sta. Rosa:
- Sto Domingo
- Cabuyao:
- Casile
- Calamba:
- Canlubang
CAVITE
- Gen. Mariano Alvarez:
- San Jose
- Carmona:
- Bancal
- Cabilang Baybay
- Lantic
- Mabuhay
- Silang:
- Carmen
- Inchican
List of Barangays Traversed by the East Valley Fault
RIZAL
- San Mateo:
- Ampid I
- Dulongbayan Ii
- Guinayang
- Guitnangbayan Ii
- Malanday
- Maly
- Santa Ana
- Rodriguez (Montalban):
- Burgos
- Macabud
- San Jose
- San Isidro
- San Rafael (Rosario)
Are you prepared for the Big One?
Source: phivolcs.dost.gov.ph and gmanetwork.com
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