1 / 11

Salient data contained herein was excerpted from: Earthquake Impact Reduction Study

Salient data contained herein was excerpted from: Earthquake Impact Reduction Study for Metropolitan Manila ( MMEIRS) March, 2004. This study was authored by: Pacific Consultants International OYO International Corporation PASCO Corporation It was commissioned by:

agnes
Download Presentation

Salient data contained herein was excerpted from: Earthquake Impact Reduction Study

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Salient data contained herein was excerpted from: • Earthquake Impact Reduction Study • for Metropolitan Manila (MMEIRS) • March, 2004

  2. This study was authored by: • Pacific Consultants International • OYO International Corporation • PASCO Corporation • It was commissioned by: • Japan International Cooperation Agency (JICA) • Metropolitan Manila Development Authority (MMDA) • Philippine Institute of Volcanology and Seismology (PHIVOLCS)

  3. About Metropolitan Manila: • It is the political, economic, and cultural center of the Philippines. • It is composed of 13 cities and 4 municipalities • It has a present population of about 10 million. • It is one of the most densely populated areas in Southeast Asia. • It is characterized by unsatisfactory infrastructure construction, poor housing condition, highly dense areas, mixed land use and other inappropriate conditions.

  4. The potential for natural disaster in Metro Manila is high, and the reduction of its vulnerability is a pressing issue for the safety of its residents. The six-story Ruby Tower apartment-building on Doroteo Jose and Teodora Alonzo streets in Sta. Cruz, Manila, collapsed “like a house of cards” during an Intensity 7 earthquake on Aug. 2, 1968 (From inquirer.net 10/30/2006).

  5. In this study, three earthquake fault models were selected for detail damage analysis because these scenario earthquakes show typical and severe damages to Metropolitan Manila. • These are: • Model 08 (West Valley Faults M.7.2); • Model 13 (Manila Trench M.7.9); and • Model 18 (1863 Manila Bay M.6.5),

  6. Among these faults, the Valley Fault System, which transects the study area, is considered to potentially cause the largest impact to the Metropolitan Manila area should it generate a large earthquake. Many research studies indicate that active phases of the Valley Faults are approaching and the estimated magnitude will be around 7 or more.

  7. Map of he West Valley Faults

  8. Recent studies show that the West Valley Fault has moved at 4 times and generated strong earthquakes within the last 1,400 years. The approximate return period of these earthquakes is less than 500 years and no event along the West Valley Fault is known after 17th century – which means that the active phases of the Valley Faults is approaching. Many research studies indicate that the estimated magnitude will be around 7 or more.

  9. For Metro Manila, an earthquake produced by the West Valley Fault is foreseen to have the following scenario: • 170,000 residential houses will collapse • 340,000 residential houses will be partly damaged • 34,000 persons will die • 114,000 persons will be injured. • Fires will break out and burn approximately 1,710 hectares and totally 18,000 additional persons will be killed by this secondary disaster. • Infrastructures and lifelines will also be heavily damaged.

  10. Regional vulnerability characteristics against earthquake are as follows:

  11. Metropolitan Manila will possibly be separated into four regions by the earthquake impact. Reasons for regional separation are summarized as follows:

More Related