大地测量与地球动力学2025，Vol.45Issue(6)：562-567,6.DOI:10.14075/j.jgg.2024.06.266
2022年红河Ms5.0地震地裂缝特征及其构造意义
Characteristics and Tectonic Significance of Surface Rupture of the 2022 Honghe Ms5.0 Earthquake
摘要
Abstract
The epicenter of 2022 Honghe Ms5.0 earthquake is located near the southern section of Red River fault zone,which consists of two nearly parallel faults:the Bolumu-Maocaoping fault and the Nanhun-Nabing fault.The Nanhun-Nabing fault is an active fault in the late Pleistocene,and signifi-cant water system dislocation deformation exists in the earthquake area.The field investigation after earthquake shows that a 1.2 km long surface rupture appeared on the ridge between Nanhun river and Nanchu river,and its distribution characteristics are consistent with the linear topography of Nanhun-Nabing fault.The deformation properties exhibited by the surface rupture in this area are consistent with the motion characteristics of earthquake rupture.Combined with the focal mechanism solution,it is believed that the Nanhun-Nabing fault is the seismogenic structure of Honghe Ms5.0 earthquake.关键词
红河5.0级地震/南昏-那炳断裂/地裂缝/发震构造/红河断裂Key words
Honghe Ms5.0 earthquake/Nanhun-Nabing fault/surface rupture/seismogenic struc-ture/Red River fault分类
地球科学引用本文复制引用
刘昌伟,周青云..2022年红河Ms5.0地震地裂缝特征及其构造意义[J].大地测量与地球动力学,2025,45(6):562-567,6.基金项目
云南省地震局科技创新团队项目(CXTD202408) （CXTD202408）
云南省重点研发计划(202203AC100003). Project for Science and Technology Innovation Team of Yunnan Earthquake Agency,No.CXTD202408 （202203AC100003）
Key Re-search and Development Program of Yunnan Province,No.202203AC100003. （）
