H/V MICROTREMOR MEASUREMENTS IN PISCO, PERU AFTER THE 2007 AUGUST 15 EARTHQUAKE
The 2007 August 15, Pisco, Peru earthquake caused a lot of damages to both adobe dwellings and substandard engineered buildings in Pisco. Liquefaction was wide spread in the city, with very large deformations observed in the areas closest to the ocean. Existing seismic wave amplification studies, based on soil classification, SPT and ground water levels, have identified 3 zones in Pisco, with amplification levels varying from 1.5 to more than 3.zonation. During our damage survey of Pisco we performed microtremor measurements at 34 points,collaborating with the Japan-Peruvian Centre of Seismic Investigations and Disaster Mitigation (CISMID). Our H/V evaluated frequencies are in fair agreement with the lithology and geotechnical characteristics and the frequencies distribution coincide partially the with MSK intensities. We hope our findings can complement the existing zonation and hazard maps.
Pisco earthquake microzonation microtremor hazard map
J. A. T. Johansson E. A. Leon Mahecha A. T. Torres Acosta J. P. Mayorca Arellano
Institute of Institute of Industrial Science, University of Tokyo, Tokyo, Japan
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）