【摘要】 2019年5月18日松原市发生M_S5.1地震，基于地震灾害现场调查、震源机制解、震区地震构造、强震动观测等，评定了地震烈度分布。此次地震极震区烈度为Ⅵ度，等震线长轴方向为北东向，面积为237km~2。调查结果表明，砖木结构受损比例最高，土木结构震害特征最重，简析震区土木结构、砖木结构、单层砖混结构和多层砖混结构房屋的震害特征，发现震区多次地震的积累，加大了本次地震中房屋的破坏程度。总结提出增强房屋抗震性能、加强防震减灾知识宣传教育等防震减灾建议。更多还原

【Abstract】 M_S5.1 earthquake occurred in Songyuan city on May 18,2019,based on the field investigation of earthquake disaster,focal mechanism,seismic structure and strong vibration observation,the distribution of earthquake intensity is evaluated. The intensity of the earthquake was Ⅵ degree,and the long axis of the isoseismic line was northeast,covering an area of 237 km~2. The results show that brick and wood structures have the highest proportion of damage,and civil structures have the heaviest damage characteristics,the earthquake damage characteristics of buildings with civil structure,brick and wood structure,singlestorey brick and concrete structure and multi-storey brick and concrete structure in earthquake area were analyzed briefly,it is found that the accumulation of many earthquakes in the earthquake area increases the damage degree of the houses in this earthquake. Some suggestions on earthquake prevention and disaster reduction are put forward,such as strengthening the seismic performance of buildings and strengthening the publicity and education of earthquake prevention and disaster reduction knowledge.更多还原