摘要
根据地震史料记载及现代区域地震台网报告,分析判别了山东历史强震(M_s≥6)和部分中等地震的序列类型。认为山东地区发生的强震多为无直接前震的主震型;而中等以下地震序列类型复杂,主震型、孤立型和震群型兼而有之。不同序列类型的地震具有区域分布特点,如胶东半岛多为中小震群型地震;鲁西多为孤立型或主震型中等地震;诸诚一惠民一带为中等地震多发带,且具成对(组)发生特点。
The sequence type of historical strong earthquakes (Ms≥ 6) and part of moderate shocks in Shandong province were analyzed and discriminated according to the records of historical earthquake data and reports of modern regional seismic network. It is thought that most strong earthquakes in Shandong province are main shock type without direct foreshocks; and the sequence types of moderate and small earthquakes is complex, there have been main shock type, isolated type and swarm type at same time. Earthquakes of different sequence types are of regional distribution characteristics, such as in Jiaodong peninsula most earthquakes are moderate-small swarm type; in the west of Shandong province, most are moderate earthquakes of isolated or mainshock types; the Zhucheng-Huimin region is dominated by moderate earthquakes that is often characterized by pairing or grouped occurrence.
出处
《地震》
CSCD
北大核心
1990年第2期29-40,共12页
Earthquake
