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伽师强震群序列的破列特征
THE RUPTURE CHARACTERISTIC OF THE STRONG EARTHQUAKE SEQUENCE IN JIASHI
【摘要】 分析了伽师强震群序列中 1 3次 5级以上地震的震源机制解资料 ,其中有 8个走滑型地震、5个倾滑型地震。走滑型地震的北北西向节面与 MS≥ 5.0级地震震中分布的斜列线一致 ,伽师强震群序列可能是北北西向右旋走滑断层及与其斜交的张性正断层共同作用的结果
【Abstract】 The focal mechanism data of 13 M S≥5.0 earthquakes in Jiashi strong earthquake sequence are analyzed, among which there are 8 strike slip earthquakes and 5 dip slip earthquakes.The NNW planes of strike slip earthquakes are consistent with the echelon direction of epicenter distribution for M S≥5.0 earthquakes.The Jiashi strong earthquake sequence may be the common act of NNW lateral slip faults and the tensional normal faults oblique crossing with it.
【关键词】 伽师;
强震群序列;
地震破裂;
震源机制解;
【Key words】 Jiashi; strong earthquake sequence; earthquake faults; focal mechanism;
【Key words】 Jiashi; strong earthquake sequence; earthquake faults; focal mechanism;
- 【文献出处】 华北地震科学 ,North China Earthguake Sciences , 编辑部邮箱 ,2001年01期
- 【分类号】P315.2
- 【被引频次】2
- 【下载频次】27