Characteristics and application test of long period microtremor in China
As a simple,quick and inexpensive method for site characterization and deep geological survey,array microtremor survey as well as H/V observation is expected to play important roles in China’s earthquake disaster prevention program,especially in the vast,economically delayed inland area.We started a co-study program on the characteristics and applications of long period microtremor in China continent from 2008.We have made microtremor observations from the coast cities like Shanghai and Tianjin through Beijing,Xi’an,to the far inland cities Lanzhou and Tianshui over the continent using long period seismometers.We also carried out some field test of applications for structure survey.The observation shows that the level of power spectrum of long period microtremor in the coast area is the same as in Japan.From the coast to the inland area,the level reduced rapidly,but even in Tianshui,which is over 1500 kilometers from the coast,with careful observation,it is still possible to use for geological survey.
Long period microtremor Array microtremor H/V observation Power spectrum Site characterization Earthquake engineering
Shaokong Feng Ailan Che Lanmin Wang Zhijian Wu Hiroaki Yamanaka
Shanghai Jiaotong Univ.,No.800 Dongchuan Rd.,Minhang District,Shanghai,China Lanzhou Institute of Seismology,China Earthquake Administration,Lanzhou,China Tokyo Institute of Technology,Nagatsuta-cho,Midori-ku,Yokohama,Kanagawa,226-8503,Japan
国内会议
北京
英文
35-40
2014-10-19（万方平台首次上网日期，不代表论文的发表时间）