Over 300 homes were buried or destroyed when mud and soil came rushing down.

... Fig.3- Cherry Hills Landslides … The programme also includes an interactive case study on decision making during a Natech crisis situation. Like many landslide events, there were many factors that can contribute or trigger the landslide. (Source: http://philhistorypicts.blogspot.com/)The Cherry Hills landslide in Rizal is attributed to many compounding factors.

Parts of Cherry Hills were buried in a landslide … It also said that the issuance of the ECC to Philjas had followed the DENR requirements. Save 03_case Study_cherry Hills Landslide For Later. The tragic loss of 58 lives in the Cherry Hills landslide attracted a lot of Philippine & International media attention and with it a lot of speculations and rumors as to what caused the slide. On the night of August 3, 1999, a massive landslide occurred in Cherry Hills subdivision in Antipolo, Rizal province, Philippines that resulted to about 60 death toll and 378 houses buried. The The court said that from the issuance of the ECC up to the time immediately prior to the landslide, he could not have kept an eye on Philjas’ compliance with the mitigating measures that he had recommended because the subdivisiom was being built when he was assigned to another region.When the tragedy struck, he was no longer regional technical director for more than three years, it added.It also said the monitoring should have been done by the Environmental Management Bureau. (2004). Heavy rains induced by Typhoon Ising (international name, Olga) triggered the landslide. It said that he could not be blamed for the absence of monitoring because he only served as regional technical director of Region IV from February 1994 to January 1996. The issuance of the ECC had allowed Philjas to secure a license from the Housing and Land Use Regulatory Board to sell land and houses in the subdivision. A man looks at a cracked road running past collapsed houses in the Cherry Hills residential subdivision of suburban Antipolo 04 August 1999 following a landslide. This report summarizes and documents the work of the committee, including the methodologies and tools employed in reconstructing the conditions before and after the landslide, its findings and conclusions.
Download 03_case Study_cherry Hills Landslide. the The Sandiganbayan also criticized the fact-finding Report that was the basis for the filing of charges against Tolentino.It noted that the report was based only on the documents sent to the panel, and that there was no site investigation on what had really caused the landslide. By continuing, you are agreeing to our use of cookies. This case study is produced to determine and understand the cause of the landslide and how it occurred. Ising developed from an active low-pressure area on 28 July and intensified into a Typhoon. Cherry Hills Landslide is one of the worse tragedies in the Philippines in the year 1990. These are: 1) the effects of 3 consecutive days of continuous rainfall (Aurelio, 2004) that led to water saturation and buildup of pore pressure on the slide surface; 2) strength degradation of the sedimentary layers underlying the mountain due to shrinkage cracking and expansion from prolonged water saturation; 3) intense fracturing of the rock mass due to its proximity to the Binangonan Fault; 4) unfavorable 8° dip angle of the rock layers to the southwest and; 5) destablization of slopes due to large cuts made by quarrying operations prior to the development of the Cherry Hills subdivision.

Landslide triggers increase with high seismic activity ... called Cherry Hills in Antipolo City (1999).

As many as 109 people died in the Philippines due to Typhoon Ising with Manila, Pampanga, Rizal and Pangasinan as the worst hit areas (Lopez, 1999).Archive photo of the Cherry Hills landslide.

This study is technically oriented but brief, readable, and very interesting, particularly the topic on Landslides and Slope Failures because the same factors apply to our own Shrine Hills danger threat. These include: (1) 1999 Cherry Hills landslide in Antipolo, (2) 2003 Panaon Island-Surigao flooding landslides, (3) 2004 Aurora-Quezon flooding landslides, (4) 2006 Guinsaugon landslide in Southern Leyte, (5) 2006 Mayon lahars in Albay (Catane, et al., 2008).

Using Risk Assessments to Reduce Landslide Risk. The community lies on a narrow strip of land about 250 meters (820 feet) wide between the shoreline and abutting a 180-meter 1590 Ft) high bluff. To find out more, In view of this reports, 35,931 persons, 12,494 families and 19,259 hectares of land are affected by the threats of landslides in eight municipalities and … 3 August 1999 On 3 August 1999 a devastating landslide occurred in Cherry Hills subdivision, Antipolo City, Rizal Province, which killed 60 people and displaced hundreds of families. The geology, historical seismicity, progressive disintegration of the rock … This would have acted as a guide on whether the soil, despite mitigating measures, could absorb the unusually heavy amount of rainfall, it added.It also said that what the investigating team did was to gather and collate documents to identify those responsible for allowing the development of the Cherry Hills area, and the probe had to be completed in 10 days.“Indeed, everything was done in haste. It said that while the graft officer who headed the probe was also an engineer, an engineering geologist and a hydrologist should have been on board to study slope protection or soil erosion, and the saturation point and flow of water in the area. It is a check list of what to look for in our own situation. It said that the requirement of an engineering, structural and geological assessment was only imposed days after the tragedy.“Hence, the accused could not have been expected to have required the submission of a geological assessment for that would be stretching the conditions beyond what the law required at the time of the application of the ECC,” it said.It added that it was only in March 2000 when the DENR required the geological and geohazard assessment, it added.The anti-graft court also junked the contention that Tolentino had failed to monitor the Cherry Hills project.

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