| 138年金城-陇西6(3/4)级地震的史料考证与发震构造背景探讨 |
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| 引用本文： | 袁道阳,雷中生,刘小凤,刘百篪,才树华,郑文俊.138年金城-陇西6(3/4)级地震的史料考证与发震构造背景探讨[J].地震地质,2004,26(1):52-60. |
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| 作者姓名： | 袁道阳 雷中生 刘小凤 刘百篪 才树华 郑文俊 |
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| 作者单位： | 中国地震局分析预报中心兰州基地,兰州,730000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划),甘肃省科技攻关项目,地震科学联合基金,G199804070104,GK9732110A,102055,,, |
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| 摘 要： | 对 138年金城 -陇西 6 3/4 级地震的历史资料考证、黄土滑坡分布及活动构造的综合研究表明 :在 138年地震中遭破坏的东汉金城郡郡治允吾县应在今青海省民和县马场垣乡下川口附近 ;陇西郡治狄道县在今甘肃省临洮县城。由此确定 138年地震的极震区位置大致在今甘肃省永靖县西北的湟水、黄河交汇地带。该区也是黄土滑坡密集分布区 ,其中的大型滑坡应为地震滑坡。在构造上该区位于拉脊山北缘弧形逆冲断裂带的前缘。拉脊山北缘断裂带为一条晚更新世活动断裂 ,部分地段为全新世活动 ,其向NE方向的逆冲推覆致使古近系泥岩和早更新世砾岩等发生了明显的挤压褶皱变形。石油勘探资料也证实拉脊山北缘弧形构造带前缘在深部存在隐伏的挤压逆冲断褶带。由此推断 138年金城 -陇西 6 3/4 级地震的发生很可能与该逆断裂 -褶皱带的新活动有关
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| 关 键 词： | 历史地震 史料考证 黄土滑坡 发震构造 金城 陇西 |
| 文章编号： | 0253-4967(2004)01-0052-09 |
| 修稿时间： | 2002年11月19 |
TEXTUAL RESEARCH ON THE HISTORICAL DATA OF THE 138 AD JINCHENG-LONGXI M6(3/4) EARTHQUAKE AND DISCUSSION ON ITS SEISMOGENIC STRUCTURAL BACKGROUND |
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| YUAN Dao-yang,LEI Zhong-sheng,LIU Xiao-feng,LIU Bai-chi,CAI Shu-hua,ZHENG Wen-jun.TEXTUAL RESEARCH ON THE HISTORICAL DATA OF THE 138 AD JINCHENG-LONGXI M6(3/4) EARTHQUAKE AND DISCUSSION ON ITS SEISMOGENIC STRUCTURAL BACKGROUND[J].Seismology and Geology,2004,26(1):52-60. |
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| Authors: | YUAN Dao-yang LEI Zhong-sheng LIU Xiao-feng LIU Bai-chi CAI Shu-hua ZHENG Wen-jun |
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| Abstract: | On March 1, 138 AD, a great earthquake of magnitude about 63/4 occurred in Jincheng-Longxi area. This event had caused "surface ruptures, serious damages of towns and houses, death of people, collapse of hills and river banks, and sink of land" in Jingcheng-Longxi area. It is worthy of noting that this earthquake is the only earthquake that had been recorded by seismograph invented by Zhang Heng, the famous Chinese ancient scientist, and it is also the earliest earthquake that was recorded by seismograph in |
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| Keywords: | Jincheng-Longxi historical earthquake textual research of historical data loess landslide sesimogenic structure |
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