Field investigation

Post-earthquake field investigation is one of the foundations of earthquake engineering research. IEM has taken the lead in the investigation of engineering damage surveys, intensity assessments, building structure safety appraisals and other scientific investigations of almost all major earthquakes in China since 1970, including the Tonghai earthquake, Tangshan earthquake, Wenchuan earthquake, Lushan earthquake, Yushu earthquake, Ludian earthquake, Yangbi earthquake, Maduo earthquake, Luding earthquake and Menyuan earthquake, as well as earthquakes in some other countries.

IEM has completed many pioneering works in China in these post-earthquake investigations:

· In the post-earthquake work of the 1970 Tonghai earthquake, the seismic damage index method for assessing the impact of the earthquake was proposed.

· After the 1975 Haicheng earthquake and the 1976 Tangshan earthquake, a comprehensive earthquake survey was completed, which laid the foundation for subsequent earthquake engineering research to a large extent.

· The first earthquake loss assessment in China was carried out for the 1988 Datong-Yanggao earthquake in Shanxi Province.

· After the 1994 Lijiang earthquake in Yunnan, the post-earthquake building safety inspection was carried out for the first time.

· By the 2008 Wenchuan earthquake, IEM sent multiple teams with more than 100 people to complete comprehensive post-earthquake field work, providing important basis and scientific support for the National Earthquake Relief Command to dispatch rescue teams.