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Title:: Application of the Rapid Intensity Reporting Subsystem to the 2021 Yangbi,Yunnan M_S6.4 Earthquake

Author(s):: XU Yaji; PANG Weidong; (Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)

Keywords:: the Yangbi M_S6.4 earthquake; the Rapid Intensity Reporting Subsystem; instrumental intensity

摘要:: 介绍了烈度速报子系统的产品产出流程、云南地区台站接入情况、仪器烈度算法,并以云南漾濞M_S6.4地震为例,从烈度速报子系统的输入数据、产出情况、仪器烈度与宏观调查烈度的对比介绍该系统的应用情况。该系统产出的震中附近仪器烈度与宏观调查烈度在空间走向上基本吻合,二者在Ⅵ～Ⅷ度区仪器烈度与宏观调查有一定程度的对应,但各烈度区涉及的分布范围有所不同,仪器烈度能较为客观地反映震区灾害情况。

Abstract:: In this paper,we firstly introduced the Rapid Intensity Reporting Subsystem about its products output process,linked-up stations and algorithm of the instrumental intensity.Then we described the subsystem about its data input,intensity output,and the comparison between the instrumental intensity and the macroscopic intensity when the subsystem is used to handle the M_S6.4 earthquake.We found that the spatial trend of the instrumental intensity was roughly consistent with the macroscopic intensity in the vicinity of the epicenter.The instrumental intensity and the macroscopic intensity in Ⅵ-Ⅷ areas to some extent corresponded to each other.In general,the instrumental intensity objectively reflected the damage in the disaster area.