Pdf neotectonics of the marikina valley fault system. Geological hazard maps carmona, cavite what is a fault. The independence valley fault zone lies along the east side of independence valley and the west side of the pequop mountains. It is believed to be the northern extension of the calaveras fault in the east bay region. 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. 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 relationship of the west valley fault zone to the salt lake city segment of the wasatch fault zone remains uncertain.
Pdf barangays and buildings traversed by the valley. Philippine institute of volcanology and seismology. List of barangays near the east and west valley fault. 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. If you live in the national capitol region then you need to know this. 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. The west valley fault extends northeastwards into the province of bulacan and passes very close to the 40 year old angat dam. 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 with two fault traces. Pdf the philippines is one of the densely populated country in the world with over 337 persons per square kilometer. West valley fault news, commentaries, updates, survival.
The wabash valley fault system in southeastern illinois. 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. West valley fault line update, quezon city, philippines. 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. Worrying new fault line discovered in california valley. West valley fault quake could spell doom for mm, rizal. Barangays and buildings traversed by the valley fault. Lastly, it appears phivolcs has known all along that taal volcano lies on the west valley fault. Thus, the publication of the valley fault system vfs atlas, a handbook of largescale maps detailing the situs of the 100 kilometerlong. Pdf late quaternary paleoseismology of the west valley.
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. Phivolcs released the list of barangays in metro manila and its nearby provinces that are located near the earthquake fault. Oct 06, 2016 worrying new fault line discovered in california valley. Late quaternary paleoseismology of the west valley fault zoneinsights from the baileys lake trench site. Why are there no faults in the great valley of central. The west valley fault zone certainly represents a surface fault rupture hazard. This is an official map and data, as such it is the most reliable information we have. With the application of plate tectonic concepts to southern oklahoma, the structural style has recently been characterized as a wrench fault system. 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. Pdf earthquakes cause extensive structural damage to a densely populated area.
Phivolcs says subway project runs parallel but not on fault line. 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. 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 owens valley fault zone, eastern california, and surface faulting associated with the 1872 earthquake. Active fault trace certain active fault trace approximate showing position of west valley fault line marikina fault line running through the municipality. 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. Disaster officials have been warning of a powerful quake possibly a magnitude 7. Carmelnewharmonyfault 16 ribeyreislandfault 16 previouslymappedstructures 16 oilproduction 16 historyoffaulting 18 references 19 tables 1.
Both fault zones have evidence of recurrent, holocene. 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. Vernon and west franklin in posey county, in an area that is known as the wabash valley seismic zo. This field trip is a tour of the fault system in central san benito county.
Quaternary faults in the 2008 wells earthquake area. 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. The evf is about 10km long and traverses the municipalities of rodriguez and san mateo in rizal province. 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. 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. May 30, 2015 posts about west valley fault written by tulisanes. The valley fault system atlas office of civil defense. Multiple large earthquakes in the past 1500 years on a fault in. Bandibas of gsj with the cooperation of the research and development personnel of phivolcs.
Like the wasatch fault zone, the west valley fault zone shows evidence of recurrent movement in the geologically recent past i. Mar 26, 2018 philvocs warns west valley fault residents. Pasig city has its own share of this geological anomaly being part 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. Phivolcs says taal eruption wont trigger tremors from.
Map and data for quaternary faults in west texas and adjacent. Residential buildings will suffer the most damage from a 7. The vfs is an active fault system in the greater metro manila area composed of two fault segments. Thus, the publication of the valley fault system vfs atlas, a handbook of large scale maps detailing the situs of the 100 kilometerlong. Salt lake city could see bigger earthquakes live science. The west valley fault will not move because of the magnitude 6. 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. West valley fault ripe for strong quake abscbn news.
Wesnousky center for neotectonic studies university of nevada, reno 89557 marc caffee, dept. Pdf barangays and buildings traversed by the valley fault system. Phivolcs launch map, valley fault system to guide users ensuring safety. 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. It is a 54kmlong, northstriking, west sidedown normal fault. Manila metro rail transit system line 7 mrtline 7 update. Part 2 please watch the current situation of taal volcano and west valley fault being explained by a pinay volcanologist from london. Taal volcano lies on the west valley fault secrets of. Seismic vulnerability, west valley fault, earthquake scenario, strong. 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. 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. 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.
The washita valley fault wvf is generally considered to be a major leftlateral strikeslip fault with an offset of approximately 40 miles. High resolution west valley fault maps launched rappler. The west valley fault zone wvfz and salt lake city segment slcs of the wasatch fault zone comprise holoceneactive normal faults that bound an intrabasin graben in northern salt lake valley, utah. The owens valley fault zone, eastern california, and surface. Meanwhile, a new risk map estimated that the cost of damage in buildings in a 7.
Scientists say theyve discovered a new fault line running parallel to the san andreas fault. 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. 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. West valley fault movement most likely to affect low, mid. Fault, the hayward fault, the concordgreen valley fault, the greenville fault, the rodgers creek fault and the san gregorio 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. Solidum issued the statement after two massive earthquakes hit nepal, leaving thousands dead. New strands of west valley fault highlighted by utah. 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. Manila, philippines government agencies launched the most detailed and updated map of two major faults within greater metro manila in. Park city, heber valley, strawberry valley, utah janis boettinger utah state university. What dangers await when the west valley fault moves.
Geologists sample taylorsvillewest valley fault line to. Manila road network along the west valley fault line. 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. 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. 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. 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. Jul 17, 2015 detailed map of west valley fault line. If anything, it appears that one is catching up with the other. So 357 and 400, magkalapit yan kasi either gumalaw yung fault nang mas maaga or mas later, he added. Like us on facebook follow us on twitter watch us on youtube visit our partners.
Owens valley 1872 fault line sierra nevada geotourism mapguide. The most dangerous fault in america earth magazine. I just came across this site while investigating the owens valley and sierra nevada faults, and after a 6. The vfs is an active fault system in the greater metro manila area gmma composed of two fault segments. News, commentaries, updates, survival tips, safety guidelines and community page for the big one. 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. The newer and taller buildings are more secured from the anticipated movement of the west valley fault. The west valley fault zone wvfz and the salt lake city. Predictive forensics for averting possible disasters.
Disaster officials say detailed maps showing danger zones will help metro manila and surrounding provinces prepare for a 7. 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. Classes and student support services will continue online for the remainder of the semester. Interactive map for the west and east valley fault line on. Luzon and in surigao fault and compostela valley area in eastern mindanao. 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.
The result of this work is the valley fault system in greater metro manila area atlas. 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. 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. Paleoseismicity and earthquake hazards evaluation of the. List of barangays in metro manila, nearby province located. 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. Map and data for quaternary faults in west texas and adjacent parts of mexico edward w. 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. Marikina valley fault system west valley fault east valley. Northforkfault 15 mauniefault 15 junctionfault 15 inmanfault 15 inmanwestfault 15 inmangraben 15 inmaneastfault 16 pitcherlakefault 16 mt. Directors ruben maria soriquez paolo bertola special effects cgi paolo bertola editing ruben maria soriquez original soundtrack. 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. Pdf identification and analysis of critical nodes in the metro. Earthquake magnitudes calculated for the west valley fault zone range from 5.
Fractures in the earths surface where rock movement has taken place and earthquakes have been produced. This new mapping provides additional data to scientists studying how the west valley and wasatch fault. Vivienne gulla, abscbn news updated as of jun 22 11. This new mapping provides additional data to scientists studying how the west valley and wasatch fault zones are linked, stated map author adam mckean. Earthquakes, faultlines, and real estate investing. Map and data for quaternary faults in west texas and. 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. Fault zone polygons are simplified areas drawn to associate faults into fault zones. 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. West valley fault philippine institute of volcanology and seismology director renato solidum jr.
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. Limits on age of last surfacerupture earthquake and late pleistocene rate of displacement. The marikina valley fault system, also known as the valley fault system vfs, is a. The philippines is one of the densely populated country in the world with over 337 persons per square kilometer. The fault contains two major segments, known as west valley fault wvf and east valley fault.
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. One of the dykes of the dam is actually believed to have been built on top fault. Phivolcs launch map, valley fault system to guide users. May 20, 2015 the valley fault systems vfs have now been closely analyzed. Earthquake hazard evaluation of the west valley fault zone. Since its formation, the great valley has continued to be low in elevation. The 1,200kmlong philippine fault zone pfz is a major tectonic feature that. 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 west valley fault system is an imaginary line marking the area where the different fault systems are located underground and are actively. Rangebounding normal fault of smith valley, nevada. The marikina valley fault system, also known as the valley fault system vfs, is a dominantly dextral strikeslip fault system in luzon, philippines. I feel that this needs to be published asap since there was an earthquake just now june 19, 20, around 7. The valley fault system vfs, an active fault in the greater metro manila area gmma, consists of two segments.
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