2003年9月2日阿克陶5.9级地震宏观烈度考察与发震构造探讨

2003年9月2日在阿克陶发生了5．9级地震，震中烈度为Ⅶ度。地震形成的雪崩、滚石，压死了大牲畜数百头，并造成Ⅵ度区的部分房屋裂缝。地震发生在新构造活动强烈的帕米尔高原东部北北西构造带上，该构造带的断裂性质多为右旋走滑的全新世活动深断裂。该次地震微观震中和宏观震中之间有一定距离，依据宏观震中位置判定，发震构造为布伦口断裂。

EXPLORATION OF THE MACROSCOPIC INTENSITY AND DISCUSSION ON THE SEISMOGENIC STRUCTRUE FOR THE AKETAO M5.9 EARTHQUAKE ON SEP.2,2003

On Sep.2, 2003, a earthquake (M=5.9) occurred in aketao, its epicentral intensity is VII. The snowslide and rolling stones that the earthquake led made hundreds of livestocks die, and part of houses were cracked in the VI area. The earthquake occured on the NNW trending tectonic belt which lie on the east of the Pamirs that new construct activity is intensive, most of faults in the tectonic belt is dextral strike-slip Holocene deep faults. There have some distance between the microseismic epicenter and macroseismic epicenter. The seismogenic structure is Bulunkou fault determined by the microseismic epicenter.