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2014年10月7日云南景谷发生M_S6.6地震,中国数字强震动台网(NSMONS)的40个台站(阵)获取了主震的强震动记录。位于极震区永平镇的强震动台站完整记录了地震动时程,其北南向PGA为627.1 cm/s~2,该台站周边多栋教学楼破坏严重,与记录所反映的强烈震动程度相吻合。12月6日主震区再次发生MS5.8、5.9强余震,NSMONS的多个台站(阵)及布设于震区的强震动流动台站获取了两次地震强震动记录。首先介绍获取强震动观测记录,接着对其强震动特征进行初步分析,最后对比分析景谷地震与鲁甸地震强震动的差异及影响。
On October 7, 2014, an earthquake of M_S6.6 occurred in Jinggu County, Yunnan Province. Forty stations (formations) of China National Strong Motion Network (NSMONS) acquired the strong earthquake records of the main shock. The strong vibration station located in the Yongping town of the extreme earthquake area recorded the complete earthquake time history with a PGA of 627.1 cm / s ~ 2 in the north-south direction. Many teaching buildings around the station were seriously damaged and strongly reflected in the records The degree of vibration is consistent. On December 6, MS5.8,5.9 strong aftershocks again occurred in the main shock zone. Two strong NSMONS stations and strong vibration mobile stations deployed in the earthquake area acquired two strong earthquake records. First of all, it introduces the acquisition of strong motion observation records, and then carries out a preliminary analysis of its strong vibration characteristics. Finally, the differences and impacts of Jingtu earthquake and Ludian earthquake are compared and analyzed.