摘要
根据1920年以来宁夏5.0级以上地震资料,应用可公度趋势判断方法,通过三元、四元、五元可公度计算及蝴蝶结构图分析,对宁夏地震灾害的时间对称性及趋势进行了判断.结果表明,2012—2014年,宁夏Ms≥5地震活动极为活跃,且2012年发生地震的信号最强,此外,2019年也是宁夏地震的可能高发年.该研究旨在丰富对称性方法的灾害趋势判断案例.
Based on the seismic data（Ms≥5） of Ningxia since 1920, the symmetry ana tenaency ol the earthquake disasters in Ningxia were analyzed and judged by using the methods of commensurability information extraction and Map of Butterfly Structure （MBS）. The results showed that the earthquakes （Ms≥5） would be extremely active from 2012 to 2014, and the earthquake signal appeared strongly in 2012. In addition, the year of 2019 may be a high frequency year that the earthquake disaster would happen in Ningxia. The study aimed at enriching case study on the disaster tendency of the symmetry method.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第6期92-96,101,共6页
Journal of Shaanxi Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(41171090)
2011年度宁夏高校科学研究项目(411-0289)
关键词
对称性
地震
趋势判断
宁夏
symmetry
earthquake
tendency
Ningxia
