北天山地震带的强震活动特征
CHARACTERISTICS OF SEISMICITY OF STRONG EARTHQUAKES IN NORTH TIANSHAN SEISMIC ZONE
-
摘要: 北天山地震带是多次发生8级大震的内陆地震带,本文研究了它的强震活动特征和地质构造的关系,将其划分出三个地震亚带,并对这三个亚带的强震活动、相关特征进行了分析对比。指出克宾-尼勒克地震亚带与乌恰-喀什地区的强震活动相关,准噶尔盆地南缘一带与阿尔泰-贝加尔地区的强震活动相关,而艾比湖地震亚带的强震活动则受南北两个方面的构造运动影响。最后从地质构造和地震活动的角度讨论了它们在地壳动力学上的意义。Abstract: North Tianshan seismic zone is an intro-continental one where several strong shocks (Ms=8) occurred. The relationship between the characteristic of strong shock activity and geological structure is discussed,The zone is divided into three sub-seismic zones and an analysis and comparison have been made for their seismicity and relativity.lt is shown that strong shock activities of Kebin-Nilk sub-seismic zone and Southern margin region of Zhungle Basin are related to that of Ugia-Hashi and Alta-Begal regions respectively. However, strong seismic activity of Aibihu sub-seismic zone is affected by southern and northern structural movement. Finally,their significance in geodynamics is discussed in terns of geology and seismicity.
-
[1] 戈树漠,新疆地震活动性,西北地震学报,1, 3, 1979. [2] 杨章,新疆天山地震区一些中、强地震发生前的b值特征,西北地震学报,5,1, 1983. [3] 国家地震局,中国地震烈度区划工作报告,地震出版社,1981. [4] 顾功叙等.中国地震目录(公元前1831年一公元1969年),科学出版社,1983。 [5] N. V, Kondorskaya and N. V, Shebalin, New Catalog of Strong Earthquakes in The U. S. S, R. From Ancient Times Through 1977, World Data Center A for solid Earth Geophysics, US, Department of Commerce, 1982, 7. [6] 朱令人等,南疆强震活动可公度特征的初步探索,西北地震学报,5, 1, 1983。 [7] 许绍燮苟,地震活动性图象,地震学报,4,3,1982。 [8] 戈树漠,中亚地区大陆碰撞的影响与作用,科学通报,7, 1982。 [9] 王六桥等,新疆地震的震源机制及扳块构造,科学通报,13, 1983。 -
点击查看大图
计量
- 文章访问数: 1556
- HTML全文浏览量: 381
- PDF下载量: 122
下载:
