A gis database of geologic units and structural features in pennsylvania, with lithology, age, data structure, and format written and arranged just like the other states. Phivolcs valley fault system atlas earthquake map now. The west valley fault line or the marikina valley fault line traverses a number of residential areas in metro manila. The philippine institute of volcanology and seismology has made public its updated and detailed maps that trace the 100kilometer west valley fault traversing parts of metro manila and the adjoining provinces of bulacan,laguna, rizal and cavite, writes dona z. As of the meantime, disaster resiliency assessors have been saying that the country. My father told me our subdivision was developed on a fault line. The west valley fault has the potential of generating a devastating magnitude 7. The valley fault system vfs, an active faultl in the greater metro manila area gmma, consists of two segments. Click here to use the california fault activity map. Bandibas of gsj with the cooperation of the research and development personnel of phivolcs.
Phivolcs launch map, valley fault system to guide users. Its composed of two segmentsthe east valley fault running through rizal, and the west valley fault, running through bulacan, rizal, metro manila, cavite, and laguna. The volcanology agency has previously warned the impending activity of the west valley fault. But unlike the wasatch fault zone, which has been the subject of dozens of detailed scientific studies, relatively little is known about the behavior of the west valley fault zone. The west valley fault that extends to cordillera, sierra madre up to batangas and tagaytay is expected to move anytime soon and could cause a 7. There is also a set of downloadable pdf files at the national disaster risk reduction and management council website. Areas south of metro manila where the valley fault line traverses is not part of the study thus has not been included in the map. Pdf neotectonics of the marikina valley fault system.
Pasig city has its own share of this geological anomaly being part of the west valley fault. This is an official map and data, as such it is the most reliable information we have. This fault can generate an earthquake with a magnitude 2 of 6. Though with slight differences, the maps are generally the same.
Province of rizal southville montalban kasiglahan village, montalban. Manila metro rail transit system line 7 mrtline 7 update. West valley fault, maaaring gumalaw anumang oras at magdulot ng magnitude 7. The philippine institute of volcanology and seismology phivolcs launched an application or tool, aiming to help its users to check if their homes can are located in the fault areas, which has a greater. Pasig city has its own share of this geological anomaly being part of the west valley fault line. Phivolcs and gma news online have downloadable copy of the valley fault system atlas on scribd. Relief map of metro manila and nearby provinces showing the west and east valley fault line. May 18, 2015 the west valley fault has the potential of generating a devastating magnitude 7.
Acquisition of additional information and data sets in the future may however require revisions of these maps. Jul 06, 2017 news to go is the daily morning newscast of gma news tv, anchored by howie severino and kara david. However, another possible source of large approximately magnitude m 6. Vallejo, american canyon, added to earthquake fault maps. It extends from dona remedios trinidad, bulacan in the north and runs through the provinces of rizal, and the metro manila cities of quezon, marikina, pasig, makati, taguig and muntinlupa, and the provinces of cavite and laguna that ends in.
Launched on monday, may 18, the valley fault system atlas is a handbook with 33 map sheets of cities traversed by the east valley fault and west valley fault. The marikina valley fault system, also known as the valley fault system vfs, is a dominantly dextral strikeslip fault system in luzon, philippines. The west valley fault line or formerly known as the marikina valley fault system, moved every 400 years, the last time that fault line moved was way back the year 1658. Evaluating the seismic relation between the west valley fault zone. An online map of united states quaternary faults faults that have been active in the last 1. Download the newly updated phivolcs west valley fault line. It is very important to understand where these lines are to understand the level of impact it may bring if your location is in the line or near it. Jul 17, 2015 detailed map of west valley fault line. The vfs is an active fault system composed of two fault segments. The marikina valley fault system, also known as the valley fault system vfs, is a. Interactive map for the west and east valley fault line on. This map gives an overview of geologically young faults and is intended to help in evaluation of the potential activity of faulting nationally. West valley fault line movement, very likely phivolcs.
The west segment, known as the west valley fault wvf is one of the two major fault segments of the valley fault system which runs through metro manila to the cities of marikina, quezon city, pasig, makati, taguig and muntinlupa and moves in a dominantly dextral strikeslip motion. The phivolcs faultfinder map displays all the different faults located in the philippines, in particular, the valley fault system or vfs formerly known by its inaccurate label marikina fault line. Mar 16, 2011 the philippine institute of volcanology and seismology on wednesday said the marikina west valley fault line is ripe for movement because it has not moved for 200 years. Phivolcs launched a map or a valley fault system vfs atlas to help the individual to determine if their location is located in the fault. The last earthquake in the area occurred in 1658, or 357 years ago. Information available includes the age of the most recent activity on each fault segment, surface rupture areas, and whether or not the faults are visible at the surface. At present, approximately 90% of onlandstretch of the pfz has been mapped. Recent earthquakes near west valley city, utah, united states.
May 20, 2015 if you find the philippine institute of volcanology and seismologys phivolcs valley fault system vfs atlas too daunting, heres a userfriendly and interactive map to see if your home or place of work is found in a quake fault zone. The ground surface, probably less than 9 ka but more than 6 ka, is also offset about 1. The west valley fault zone is separate from, but related to the wasatch fault zone, which is the regions preeminent fault and lies at the base of the wasatch range. Philippine fault zone maps philippine institute of. Manila, philippines government agencies launched the most detailed and updated map of two major faults within greater metro manila in. Largescaleactive fault map of the philippine fault based on aerial photograph and interpretation. Evaluating the seismic relation between the west valley. May 19, 2015 a high resolution copy of the atlas is available for free download upon registration from the phivolcs website. The fault contains two major segments, known as west valley fault wvf and east. The philippine institute of volcanology and seismology phivolcs has made public updated and detailed maps that trace the 100kilometer west valley fault traversing parts of metro manila and the. Repeated fault movements during earthquakes have formed the mountains to the east and the valleys to the west.
The latter segment could possibly generate a magnitude 7. Another site provides a list of notable barangays, villages and infrastructure that lie exactly on top or within 500meter radius from the fault line. West valley fault line update, quezon city, philippines. The west valley fault, a 100kilometer fault, is one of the segments of an active fault, the valley fault system. The vfs is an active fault system in the greater metro manila area gmma composed of two fault segments.
There is an interactive map application to view the faults online and a seperate database search function. Jul 11, 2014 the west and east valley fault system span from angat, bulacan all the way down to carmona, cavite and calamba, laguna and is the most feared event that could hit metro manila in case the fault system moves as it may cause larger than 7. Streets maintenance west valley city, ut official site. West valley fault running through bulacan, rizal, metro manila, cavite, and laguna. Like the wasatch fault zone, the west valley fault zone shows evidence of recurrent movement in the geologically recent past i.
Links and maps secrets of the marikina valley fault line. If an internal link led you here, you may wish to change the link to point directly to the intended article. Philippine west valley fault line maps are you safe. Jun 18, 20 the confusion lies in the fact that the 2014 article was based on the 2010 fault trace of phivolcs that has been rendered superseded and nonapplicable by the recent and updated 2015 fault trace that is based on phivolcs vallet fault system atlas. The evf is about 10kmlong and traverses the municipalities of rodriguez and san mateo in rizal province. List of barangays in metro manila, nearby province located. If you are using ie 8 or later, make sure you turn off compatibility view. Moderate emission of white steamladen plumes that crept downslope before drifting west, southwest, southsouthwest, and westsouthwest was observed.
How big and how frequent are earthquakes on the wasatch fault. Preliminary map of young faults in the united states as a guide to possible fault activity. This disambiguation page lists articles associated with the title valley fault system. May 19, 2015 phivolcs said in the last 1,400 years, the west valley fault had moved on an interval of every 400 to 600 years. Intending to make people aware rather than drive scared folks out of their minds, rappler compiled this list along with map locations on these subdivisions and villages the fault line is defined. New strands of west valley fault highlighted by utah. Phivolcs director renato solidum warned the west valley fault, which traverses parts of metro manila and adjoining provinces of bulacan, laguna, rizal and cavite, is ripe for a possible strong earthquake. I was suppose to offer the property to a client, but decided to first check the location of the property with the phivolcs valley fault system maps just to make sure the property doesnt straddle on an earthquake fault line. It is one of the service agencies of the department of science and technology.
The new napa quadrangle and revised cuttings wharf quadrangle maps cover the west napa fault zone, which extends from the vallejo area northwards, where the fault zone borders the east side of. I am curious but i cant find any exact location published, like specific residential areas. The west valley fault system is an imaginary line marking the area where the different fault systems are located underground and are actively moving from where a big earthquake may originate. Valley fault system vfs in the philippines, is a dominantly dextral strikeslip fault system that extends from dingalan, aurora in the north and runs through the cities of quezon, marikina. To know where the west valley fault system is and help you prepare, the philippine institute of volcanology and seismology or phivolcs, created an interactive map for the public to use. This means structures thought to be sitting atop a fault line may not be sitting there at all, and those next to or thought lucky to be. Use of the active faults map in this website can be cited as. Interactive risk analysis map of the valley fault system. Interactive map of fault activity in california american. West valley fault line movement, very likely phivolcs untv news. List of subdivisions, villages under west valley fault. The vfs was unveiled on may 18, 2015 at the institutes auditorium, quezon city to spread awareness on west valley fault which could possibly generate a magnitude 7.
What dangers await when the west valley fault moves. Base map pdf street map and parcel lines general plan map high resolution pdf west valley city boundaries jpg. The high seismic risk posed by this fault zone requires a largescale active faults map, a fundamental data set for seismic hazard mitigation. Manila road network along the west valley fault line. The california geological surveys interactive map allows users to identify the location and classification of faults throughout california. However, less is known about which specific areas lie directly along the west valley fault and east valley fault in greater metro manila. There is a possibility that within 20002058, the west valley fault will unleash havoc to the cities of metro manila. Valley fault system atlas launch for earthquake preparedness. This new mapping provides additional data to scientists studying how the west valley and wasatch fault zones are linked, stated map author adam mckean. Pdf identification and analysis of critical nodes in the metro. Interactive fault mapinteractive quaternary faults map. San mateo and montalban secrets of the marikina valley. West valley fault earthquake threatens metro manila video.
Marikina westeast valley fault line system gps map overlay. However at close inspection, the 2015 fault trace generated from phivolcs valley fault system vfs atlas deviates from the 2010 fault trace at most minute points. The west and east valley fault system span from angat, bulacan all the way down to carmona, cavite and calamba, laguna and is the most feared event that could hit metro manila in case the fault system moves as it may cause larger than 7. This fault roughly moves between 400600 years and the last earthquake in this fault was recorded on 1658 or 357 years ago. Because of its scale, it cannot be used as an index of specific faults or fault. The interactive map is based on trace from the phivolcs risk analysis map released on june 20. The wasatch fault zone quakes occur on normal faults that dip at an angle under the valley to the west. Prepare for the big one dost makes valley fault atlas. Phivolcs handed copies of the valley fault atlas, a handbook of largescale maps, to local government officials to make sure that areas traversed by active faults are avoided as sites of houses and other structures. Is your house sitting on top of the east valley fault or. Thus, the epicenter can be anywhere from that 100km fault line and we should expect aftershocks or quake swarms anywhere as well.
Earthquake hazard evaluation of the west valley fault zone. Installs or updates an overlay map of the west east valley fault line system in metro manila. This event is a scenario it did not occur and should only be used for planning purposes. High resolution west valley fault maps launched rappler. This web app is a product of the joint collaboration between the philippine institute of volcanology and seismology phivolcs, philippines and geological survey of japan gsj, japan. Although the school is far from the west valley fault we still have to prepare the students says batasan hills national high school principal diego amid. Bautista said these are the findings that resulted from the metro manila earthquake impact study they conducted in 2002. The higherresolution copy is available for free download from the phivolcs website. Evaluating the seismic relation between the west valley fault. Phivolcs warns valley fault residents manila, philippines residents of metro manila and nearby provinces should prepare for the big one, a magnitude 7. Valley fault system valley fault system is the common name for fault systems in valleys and basins including.