Pdf neotectonics of the marikina valley fault system. Valley fault system launched by phivolcs 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. Pdf earthquakes cause extensive structural damage to a densely populated area. Pdf the philippines is one of the densely populated country in the world with over 337 persons per square kilometer. 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. The west valley fault will not move because of the magnitude 6. Valley fault system atlas for greater metro manila area complete pdf i wrote this post last monday and scheduled it for posting later this week. The west valley fault extends northeastwards into the province of bulacan and passes very close to the 40 year old angat dam. New madrid not the only hot spot recent earthquakes have reinforce that the new madrid seismic zone isnt the only hot spot for earthquakes in the central u. Carmelnewharmonyfault 16 ribeyreislandfault 16 previouslymappedstructures 16 oilproduction 16 historyoffaulting 18 references 19 tables 1.
The owens valley fault zone, eastern california, and surface. Geologists sample taylorsvillewest valley fault line to. News, commentaries, updates, survival tips, safety guidelines and community page for the big one. The valley fault system vfs, an active fault in the greater metro manila area gmma, consists of two segments.
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. Scientists say theyve discovered a new fault line running parallel to the san andreas fault. Barangays and buildings traversed by the valley fault system the valley fault system, which is composed of the west and east valley fault traverses to several provinces all the way from bulacan in the north to laguna in the south with a total length of 146. Rangebounding normal fault of smith valley, nevada. Thus, the publication of the valley fault system vfs atlas, a handbook of large scale maps detailing the situs of the 100 kilometerlong. Starting about 20 million years ago the tectonics changed in california and instead of the ocean plate diving down under the north american plate, it began to slide along it, with the ocean plate moving. Salt lake city could see bigger earthquakes live science.
Neotectonics of the marikina valley fault system mvfs and tectonic framework of structures in northern and central luzon, philippines article pdf available in tectonophysics 41514. Map and data for quaternary faults in west texas and adjacent. Luzon and in surigao fault and compostela valley area in eastern mindanao. 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. 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. May 15, 2015 dito sa west valley fault, ang kada galaw niya ay 400 to 600 years at ang last niyang gumalaw ay 1658, 357 years ago. Phivolcs says taal eruption wont trigger tremors from. Owens valley 1872 fault line sierra nevada geotourism mapguide. It is believed to be the northern extension of the calaveras fault in the east bay region. Thus, the publication of the valley fault system vfs atlas, a handbook of largescale maps detailing the situs of the 100 kilometerlong. May 30, 2015 posts about west valley fault written by tulisanes. The west valley fault system is an imaginary line marking the area where the different fault systems are located underground and are actively.
The owens valley fault zone, eastern california, and surface faulting associated with the 1872 earthquake. Wesnousky center for neotectonic studies university of nevada, reno 89557 marc caffee, dept. Pdf late quaternary paleoseismology of the west valley. 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. Park city, heber valley, strawberry valley, utah janis boettinger utah state university. This new mapping provides additional data to scientists studying how the west valley and wasatch fault. Active fault trace certain active fault trace approximate showing position of west valley fault line marikina fault line running through the municipality. The result of this work is the valley fault system in greater metro manila area atlas. So 357 and 400, magkalapit yan kasi either gumalaw yung fault nang mas maaga or mas later, he added. The 1,200kmlong philippine fault zone pfz is a major tectonic feature that. One of the most dangerous is the hayward fault, which connects to the rodgers creek fault to the north and seems to connect to the calaveras fault in the south, according to recent research. Its closer than we think general elmo san diego ret, head of the department of public order and safety of the quezon city government, did not mince words about the grave danger posed by the west valley fault system that runs underneath the streets, houses, and backyards of metro manila residents.
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. Like the wasatch fault zone, the west valley fault zone shows evidence of recurrent movement in the geologically recent past i. This new mapping provides additional data to scientists studying how the west valley and wasatch fault zones are linked, stated map author adam mckean. Philippine institute of volcanology and seismology. May 20, 2015 the valley fault systems vfs have now been closely analyzed. 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 field trip is a tour of the fault system in central san benito county. Quaternary faults in the 2008 wells earthquake area. List of barangays in metro manila, nearby province located. The valley fault system, consisting of the west valley fault and the east valley fault, was mapped by the philippine institute of volcanology and seismology. To think, the muchanticipated movement of the west valley fault is long overdue, and phivolcs now is not discounting the 1754 scenario of violent eruption from happening. Why are there no faults in the great valley of central california.
The vfs is an active fault system in the greater metro manila area gmma composed of two fault segments. Classes and student support services will continue online for the remainder of the semester. Tectonic significance of the rock valley fault zone, nevada test site 1 abstract the rock valley fault zone comprises several eastnortheaststriking leftlateral faults and numerous other faultrelated structures in a zone about 4 kilometers wide within rock valley, nevada test site, nye county, nevada. Earthquake magnitudes calculated for the west valley fault zone range from 5. High resolution west valley fault maps launched rappler. Disaster officials have been warning of a powerful quake possibly a magnitude 7. Why are there no faults in the great valley of central. Map and data for quaternary faults in west texas and adjacent parts of mexico edward w. Seismic vulnerability, west valley fault, earthquake scenario, strong. Vivienne gulla, abscbn news updated as of jun 22 11.
Directors ruben maria soriquez paolo bertola special effects cgi paolo bertola editing ruben maria soriquez original soundtrack. Phivolcs says subway project runs parallel but not on fault line. Fault, the hayward fault, the concordgreen valley fault, the greenville fault, the rodgers creek fault and the san gregorio fault. Geological hazard maps carmona, cavite what is a fault.
The philippines is one of the densely populated country in the world with over 337 persons per square kilometer. The newer and taller buildings are more secured from the anticipated movement of the west valley fault. Meanwhile, a new risk map estimated that the cost of damage in buildings in a 7. Phivolcs launch map, valley fault system to guide users.
The wow part is the prediction by harvey wills in 2018 that the first big quake along the subject area could possibly hit as soon as midjuly, 2019. Thus, the publication of the valley fault system vfs atlas, a handbook of largescale maps detailing the situs of the 100kilometerlong west valley and the 10ki ometerlong east val ey segments of the vfs in the metro luzon urban be tway super reg on, is a welcome and significant. Interactive map for the west and east valley fault line on. Evaluating the seismic relation between the west valley. Prepare for the big one march 26, 2018 february 22, 2017 by boklit staff the philippine institute of volcanology and seismology philvocs director renato solidum advised people to get ready for the dangerous earthquake that is caused by the west valley fault and would likely to hit particularly. West valley fault ripe for strong quake abscbn news. West valley fault movement most likely to affect low, mid. Both fault zones have evidence of recurrent, holocene. The evf, which covers several barangays in rodriguez and san mateo, rizal, measures ten kilometers long while the wvf, which runs within bulacan, rizal, metro manila, cavite and laguna has a length of 100 kilometers.
Most of the population is situated in metro manila with roughly 21,000 per square kilometer density in an area of over 600 square. The wabash valley fault system in southeastern illinois. It is a 54kmlong, northstriking, west sidedown normal fault. Fractures in the earths surface where rock movement has taken place and earthquakes have been produced. Pdf barangays and buildings traversed by the valley fault system. Taal volcano lies on the west valley fault secrets of. Late quaternary paleoseismology of the west valley fault zoneinsights from the baileys lake trench site. Jul 17, 2015 detailed map of west valley fault line. The vfs is an active fault system in the greater metro manila area gmma with two fault traces. 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. With the application of plate tectonic concepts to southern oklahoma, the structural style has recently been characterized as a wrench fault system. Marikina valley fault system west valley fault east valley. Manila metro rail transit system line 7 mrtline 7 update. Barangays and buildings traversed by the valley fault.
Mar 26, 2018 philvocs warns west valley fault residents. The washita valley fault wvf is generally considered to be a major leftlateral strikeslip fault with an offset of approximately 40 miles. Here are 10 important things that you need to know about the fault line thats also known to traverse quezon city, marikina city, makati city, taguig and muntinlupa in metro manila. Northforkfault 15 mauniefault 15 junctionfault 15 inmanfault 15 inmanwestfault 15 inmangraben 15 inmaneastfault 16 pitcherlakefault 16 mt. The west valley fault zone certainly represents a surface fault rupture hazard. If anything, it appears that one is catching up with the other.
No segment of the metro manila subway project would run over the west valley fault, the philippine institute of volcanology and seismology phivolcs has assured the. Part 2 please watch the current situation of taal volcano and west valley fault being explained by a pinay volcanologist from london. Earthquakes, faultlines, and real estate investing. West valley fault philippine institute of volcanology and seismology director renato solidum jr.
West valley fault quake could spell doom for mm, rizal. The west napa fault is a 57 km 35 mi long geologic fault in napa county, in the north bay region of the san francisco bay area in northern california. Worrying new fault line discovered in california valley. Disaster officials say detailed maps showing danger zones will help metro manila and surrounding provinces prepare for a 7.
Limits on age of last surfacerupture earthquake and late pleistocene rate of displacement. Since its formation, the great valley has continued to be low in elevation. Predictive forensics for averting possible disasters. On tuesday april 04, 2017, the philippine institute of volcanology and seismology phivolcs released the valley fault system vfs atlas, largescale maps showing the areas near the earthquake fault. The marikina valley fault system, also known as the valley fault system vfs, is a dominantly dextral strikeslip fault system in luzon, philippines. May 17, 2017 the west valley fault line doesnt need to be an enigma to you, especially if youre a resident or working in pasig city. Map and data for quaternary faults in west texas and. New strands of west valley fault highlighted by utah. The evf is about 10km long and traverses the municipalities of rodriguez and san mateo in rizal province. Pdf barangays and buildings traversed by the valley. The most dangerous fault in america earth magazine.
It is believed to be the northern extension of the calaveras fault in the east bay region it has been mapped as a late pleistoceneholocene active fault, and is considered to be predominantly a right lateral strikeslip fault. Mar 22, 2011 phivolcs maps of marikina fault line affected areas phivolcs is calling all owners of buildings and structures located on or near the marikina fault, which is now officially named as west valley fault, to be prepared as an earthquake may strike along marikina fault at any time. Bandibas of gsj with the cooperation of the research and development personnel of phivolcs. West valley fault line update, quezon city, philippines. Check out the maps and the fast facts to understand the risks and plan how to survive when a strong quake shakes metro manila and surrounding. Manila road network along the west valley fault line. Carmona ground rupture py west valley fault runs thru the northern edge of southwoods along southwoods drive all the way down to cityland subdivision, running along sugar road. Multiple large earthquakes in the past 1500 years on a fault in. The vfs is an active fault system in the greater metro manila area composed of two fault segments. Like us on facebook follow us on twitter watch us on youtube visit our partners. May 18, 2016 the san francisco bay area is riddled with faults. Geologists have dug a 150foot trench by salt lake city international airport to study the taylorsville west valley city fault, and its rock samples will help scientists forecast when the next major earthquake could erupt along the wasatch fault. The independence valley fault zone lies along the east side of independence valley and the west side of the pequop mountains.
If you live in the national capitol region then you need to know this. What dangers await when the west valley fault moves. Mar 16, 2011 manila, philippines the philippine institute of volcanology and seismology on wednesday said the marikina west valley fault line, one of the active faults in the country, is ripe for movement because it has not moved for 200 years. Oct 06, 2016 worrying new fault line discovered in california valley. One of the dykes of the dam is actually believed to have been built on top fault. To the west, in urban salt lake city, a 4milewide 6 km zone of fault segments called the west valley fault zone stretches northnorthwest for 9 miles 14 km beneath the valley.
Residential buildings will suffer the most damage from a 7. 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. The marikina valley fault system, also known as the valley fault system vfs, is a. Phivolcs launch map, valley fault system to guide users ensuring safety. The west valley fault zone wvfz and the salt lake city. Paleoseismicity and earthquake hazards evaluation of the. The estimated building damage include 1,100 hectares of floor area with collapsed structures, and probable death of 37,054 persons in metro manila and five area of rizal province. Phivolcs released the list of barangays in metro manila and its nearby provinces that are located near the earthquake fault.
Pdf identification and analysis of critical nodes in the metro. Because the fault zones may overlap, the boundary between the two fault zone polygons is shared and faults near this boundary may be associated with ruptures on either fault section. I just came across this site while investigating the owens valley and sierra nevada faults, and after a 6. Vernon and west franklin in posey county, in an area that is known as the wabash valley seismic zo. Lastly, it appears phivolcs has known all along that taal volcano lies on the west valley fault.
Manila, philippines government agencies launched the most detailed and updated map of two major faults within greater metro manila in. Fault zone polygons are simplified areas drawn to associate faults into fault zones. 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. This is an official map and data, as such it is the most reliable information we have. The tour is a 40 mile loop route that follows cienega road south from hollister through the hollister hills into the valley of the san benito river south of hollister. West valley fault news, commentaries, updates, survival. The fault contains two major segments, known as west valley fault wvf and east valley fault.