地震学报（英文版）2005，Vol.18Issue(1)：64-71,8.
Paleo-earthquake studies on the eastern section of the Kunlun fault
Paleo-earthquake studies on the eastern section of the Kunlun fault
摘要
Abstract
Roughly along the Animaqing Maji peak, the Kunlun fault section between the Tuosuo Lake and Kendingna (east Maqin) can be subdivided into two geometric segments: the Huashixia and the Maqin segments. These two segments behave differently in their Holocene slip rates and paleo-earthquake activities, with obviously higher paleo-seismic activity on the Huashixia segment than on Maqin segment. As many as four strong Holocene earthquakes are identified on the Huashixia segment from trenching and geomorphic studies. The recurrent interval for the latest three earthquakes are at about 500 a and 640 a, respectively. On the Maqin segment, at least three paleo-earthquake events can be defined from trenching, with a recurrent interval for the latest two events at about 1 000 a. M = 7.5 earthquakes on Huashixia segment recur at every 411a to 608a with a characteristic slip at 5.75(0.57 m. Although the Maqin segment is less active, its accumulated strain energy during the long time period since last earthquake occurred (about 1 070 a BP) deserves enough notice on its future earthquake probabilities.关键词
Kunlun fault/Holocene slip rate/paleo-earthquake/earthquake recurrent interval/risk estimation of strong earthquakeKey words
Kunlun fault/Holocene slip rate/paleo-earthquake/earthquake recurrent interval/risk estimation of strong earthquake分类
天文与地球科学引用本文复制引用
李春峰,贺群禄,赵国光..Paleo-earthquake studies on the eastern section of the Kunlun fault[J].地震学报（英文版）,2005,18(1):64-71,8.基金项目
Sino-French Cooperative Research program "The Shortening Mechanisms of Eastern Kunlun Lithosphere". （）
