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山东凫山断裂和峄山断裂的新活动时代研究
王雷1, 王志才1, 付俊东1, 万永魁2, 许洪泰1, 王冬雷1, 权腾龙1, 王津津1
1.山东省地震局工程地震重点实验室, 济南市历城区港西路2066号 250102;2.中国地震局第一监测中心, 天津 300180
摘要:
历史资料和前人研究表明,462年山东省滕州西发生6 ½级地震。该地震震中附近有已探究发现的凫山断裂、峄山断裂和孙氏店断裂等。本文利用物探、钻探、形貌测量、地质考察和测年等多种手段,进一步鉴定凫山断裂和峄山断裂,得出前者最新活动时代为晚更新世早期,后者最新活动时代为中更新世早期。前人研究表明,462年滕州西地震烈度等震线近SN走向,因此,SN走向的峄山断裂和孙氏店断裂均可能是此次地震的发震断裂。
关键词:  462年地震  凫山断裂  峄山断裂  发震断裂
DOI:
分类号:P315
基金项目:中国地震局地震科技星火计划项目(XH17020)、山东省地震局科技创新团队(活动构造研究)、山东省重点研发计划项目(2015GSF120008)和山东省自然科学基金项目(ZR2012DM005)共同资助
Research on Seismotectonic Setting of Western Tengzhou M6 ½ Earthquake in Shandong Province in 462
Wang Lei1, Wang Zhicai1, Fu Jundong1, Wan Yongkui2, Xu Hongtai1, Wang Donglei1, Quan Tenglong1, Wang Jinjin1
1.Key Laboratory of Engineering Earthquake, Shandong Earthquake Agency, Jinan 250102, China;2.The First Monitoring and Application Center, China Earthquake Administration, Tianjin 300180, China
Abstract:
The historical data and previous studies showed that a M6 ½ earthquake occurred in Western Tengzhou,Shandong Province in 462. The Fushan Fault,Yishan fault and the Sunshidian fault have been discovered near the epicenter of the earthquake. By means of geophysical prospecting,drilling,topography measurement,geological survey and dating,the latest activities of the Fushan fault and the Yishan fault are further identified. The former is early Late Pleistocene and the latter is the early stage of the Middle Pleistocene. Previous studies have shown that the intensity isoseismal of the western Tengzhou earthquake in 462 approached the north-south direction. Both the Yishan fault and Sunshidian Fault in the north-south direction may be the seismogenic fault of the earthquake.
Key words:  462 years earthquake  Fushan fault  Yishan fault  Seismogenic fault