Analysis of the phenomenon of"small earthquakes and great disasters"in Guizhou:A case study of ML 4.6 earthquake in Shuicheng,Guizhou on July 24,2024
Liupanshui City is located in the west of Guizhou Province,and the earthquake fortification intensity of Shuicheng District in this city isⅥ-Ⅶ.The existing buildings in the area are mainly brick and concrete structures and frame structures.There were significant differences in damage to buildings of different structural types in adjacent locations caused by ML 4.6 earthquake in Shuicheng,Guizhou on Julu 24,2024.By investigating the seismic damage of different building structures near the epicenter,it was found that some buildings experienced significant damage under low intensity conditions,mainly due to unreasonable building construction methods and limitations in construction site conditions.This is also one of the reasons for the"small earthquakes and big disasters"in Guizhou region.This article analyzes the different causes of seismic damage to buildings with the same intensity but different structures,and provides preliminary suggestions for the construction methods of buildings in the region in the future.
Shuicheng earthquakeearthquake damage investigationsite conditionsmall earthquake and big disaster