Abstract:Before the Gaoling earthquake, cross-fault vertical deformation within 100 km ranges on the periphery of the epicenter showed no abnormal changes. Although the earthquake did not cause coseismic deformation of active faults, it led to fault instability. Fault creep intensified under the continuous action of aftershocks, and eventually caused about 3 mm permanent vertical deformation on the Lingkou cross-fault site. We speculate that the occurrence of earthquakes is connected with activities of Weinan tableland front fault.
CAO Jianping,ZHENG Zengji,ZHANG Yongqi et al. Comprehensive Analysis of Fault Vertical Deformation before and after Gaoling M4.4 Earthquake in Shaanxi Province[J]. jgg, 2017, 37(4): 335-338.