亚东—格尔木走廊域及其邻区的地震活动特征

本文依据大量资料，阐述了亚东—格尔木走廊域及其邻近地区地震活动空间分布规律和现代构造应力场特征。地震活动主要沿几条走向大致乎行的弧形山系呈带状分布，震源深度多在15-35km范围内，断层面解的主要压应力轴以NNE-SSW方向为主且仰角较小，不同强度、不同深度地震的主压应力轴取向基本相同。

CHARACTERISTICS OF EARTHQLAKE ACTIVITY IN YADONG-GOLMUD STRIP AND ITS NEIGHBORHOOD

In this paper the distribution of earthquakes and characteritics of the filed in the recent stress Yadong-Golmud strip and its neighborhood are expounded. The work is based on a great amount of seismic data. The earthquakes' are distributed in a zonal form around a number of arcuate mountaia systems that are roughly parallel to each other. The depths of the focuses are in the range of 15-35 km. The dominant direction of the principal axes of the compressive stress is NNE-SSW, and the elevation angles are small. The principal axes of the compressive stress are basically the same regardless of the earthquake magnitude and the focus depth.