摘要
In this paper, we calculated the seismic pattern of instrumental recorded small and moderate earthquakes near the epicenter of the 1303 Hongtong M=8 earthquake, Shanxi Province. According to the spatial distribution of small and moderate earthquakes, 6 seismic dense zones are delineated. Temporal distribution of ML2 earthquakes since 1970 in each seismic dense zone has been analyzed. Based on temporal distribution characteristics and historical earthquake activity, three types of seismicities are proposed. The relationship between seismic types and crustal medium is analyzed. The mechanism of three types is discussed. Finity of strong earthquake recurrence is pro-posed. Seismic hazard in mid-long term and diversity of earthquake disaster in Shanxi seismic belt are discussed.
In this paper,we calculated the seismic pattern of instrumental recorded small and moderate earthquakes near the epicenter of the 1303 Hongtong M =8 earthquake,Shanxi Province. According to the spatial distribution of small and moderate earthquakes,6 seismic dense zones are delineated. Temporal distribution of M L≥2 earthquakes since 1970 in each seismic dense zone has been analyzed. Based on temporal distribution characteristics and historical earthquake activity,three types of seismicities are proposed. The relationship between seismic types and crustal medium is analyzed. The mechanism of three types is discussed. Finity of strong earthquake recurrence is proposed. Seismic hazard in mid-long term and diversity of earthquake disaster in Shanxi seismic belt are discussed.
出处
《地震学报》
CSCD
北大核心
2004年第4期347-354,共8页
Acta Seismologica Sinica
基金
Key Science Research Project (100501-05-09) from China Earthquake Administration during the tenth Five-year Plan.
关键词
地震活动性
局部地壳介质
中长期地震预测
山西地震
强震重复
地震灾害
seismicity
local crustal medium
mid-long term earthquake prediction
Shanxi earthquakes
strong earthquake recurrence
earthquake disaster
