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Intensity Distribution of the Mojiang MS5.9 Earthquake in Yunnan in 2018
LU Yongkun,ZHOU Yang,DAI Boyang,YANG Jianqiang,YAN Hang
作者单位
LU Yongkun Yunnan Earthquake Agency, Kunming 650203, China 
ZHOU Yang Yunnan Earthquake Agency, Kunming 650203, China 
DAI Boyang Yunnan Earthquake Agency, Kunming 650203, China 
YANG Jianqiang Yunnan Earthquake Agency, Kunming 650203, China 
YAN Hang Yunnan Earthquake Agency, Kunming 650203, China 
摘要:
The distribution of the intensity of the Mojiang MS5.9 earthquake in Yunnan Province is expounded, and the damage characteristics of buildings and the damage ratio and seismic damage index of various building structures in each intensity area are compared with those of The Chinese Seismic Intensity Scale. The main basis and method of seismic intensity assessment are discussed in this paper. It is concluded that: ① The seismic intensity should be based on the earthquake damage of the housing structure, which takes up a high ratio in the seismic intensity assessment. It is recommended that seismic intensity is estimated by calculating the average seismic damage index. ② The highest intensity of the Mojiang MS5.9 earthquake is VⅢ degrees, with the long axis trending in the north-west direction. The area above VⅡ degrees is 5,180km2. ③ The intensity distribution of the Mojiang MS5.9 earthquake meets the national standard and the distribution law of seismic intensity in Yunnan.
关键词:  Mojiang MS5.9 earthquake  Seismic intensity  Damage ratio  Seismic damage index
DOI:10.19743/j.cnki.0891-4176.201901011
分类号:
基金项目:This project is sponsored by the Sparkle Program of Earthquake Science,CEA (XH17032).
Intensity Distribution of the Mojiang MS5.9 Earthquake in Yunnan in 2018
LU Yongkun,ZHOU Yang,DAI Boyang,YANG Jianqiang,YAN Hang
Abstract:
The distribution of the intensity of the Mojiang MS5.9 earthquake in Yunnan Province is expounded, and the damage characteristics of buildings and the damage ratio and seismic damage index of various building structures in each intensity area are compared with those of The Chinese Seismic Intensity Scale. The main basis and method of seismic intensity assessment are discussed in this paper. It is concluded that: ① The seismic intensity should be based on the earthquake damage of the housing structure, which takes up a high ratio in the seismic intensity assessment. It is recommended that seismic intensity is estimated by calculating the average seismic damage index. ② The highest intensity of the Mojiang MS5.9 earthquake is VⅢ degrees, with the long axis trending in the north-west direction. The area above VⅡ degrees is 5,180km2. ③ The intensity distribution of the Mojiang MS5.9 earthquake meets the national standard and the distribution law of seismic intensity in Yunnan.
Key words:  Mojiang MS5.9 earthquake  Seismic intensity  Damage ratio  Seismic damage index