东昆仑断裂带地震复发间隔及地震危险性

Abstract

Abstract: East Kunlun fault zone is an important fracture in the northeast of Qinghai—Tibet Plateau and constitutes the northern boundary of Bayan La block. According to the differences of sliding rate and historical earthquakes on both sides of Annemaqen Shan Mountains, we divide the fault zone into two parts, the eastern and the western. Slip rate gradients decrease from west to east, and the rupture caused by historical earthquake in the past hundred years basically covers the western and a part of the eastern parts. With the continuous occurrences of strong earthquakes in the edge of Bayan La block, the study on seismic gap and seismic potential of the eastern Kunlun fault are becoming more and more important. Recently, through the study of different sections of the eastern Kunlun fault, more slip rates and paleo-earthquake sequence data have been obtained, which provide favorable conditions for evaluating the potential dangers in the next 100 years. We estimate earthquake probability in the next 100 years for the eastern Kunlun fault by the NB logarithm-normal distribution model. The Maqu segment of the eastern part has a higher earthquake probability.

Key words: Earthquake potential, Paleo-earthquake, East Kunlun fault zone, The eastern Kunlun fault zone

CLC Number:

P315.7

CAI Yao-yao, ZHANG Jun-long. Repeating Intervals and Potentials of Earthquakes in the Eastern Kunlun Fault Zone[J]. EARTHQUAKE, 2018, 38(3): 58-65.

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Repeating Intervals and Potentials of Earthquakes in the Eastern Kunlun Fault Zone

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