SEISMOLOGY AND GEOLOGY ›› 1980, Vol. 2 ›› Issue (4): 11-20.

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ANALYSIS OF ACTIVE FAULTS IN TAIWAN PROVINCE AND THEIR RELATION TO EARTHQUAKES FROM SATELLITE IMAGES

Zhang Shiliang, Chen Shangfu   

  1. Institute of Geology, National Bureau of Seismology
  • Received:1980-01-31 Online:1980-12-03 Published:2009-11-25

从卫星影像上分析我国台湾岛活动断裂及其与地震的关系

张世良, 陈上福   

  1. 国家地震局地质研究所

Abstract: Basing upon the Landsat images this paper briefly described the active faults in Taiwan province and their relation to the earthquakes. The active faults, elongated mostly in a form of belt with distinct tectonic activity, are clearly characterized by the satellite images. The region under investigation is principally controlled by the NNE trending active fault zones, which usually have a left-lateral character. Although the NW trending active zones are not so large on the scale as the former, they behave as a fault with evidence of recent movement in northern Taiwan and are right-lateral in nature. By synthetic analysis of data concerned this region is determined to be compressed from NNW-SSE direction, due to the collision between the Phillippine Sea plate and the Eurasian plate.

摘要: 本文是根据Landsat卫星影像概括分析了台湾岛的活动断裂及其与地震的关系。在卫星影像上,活动断裂的特点是影像清晰,多成带出现,活动性明显。北北东向活动断裂带构成本区的基本轮廓,多数具有左旋平移性质;北西向活动断裂带的规模虽不如前者,但有可能是台湾岛北部最新的活动断裂,并具有右旋平移性质。通过综合分析表明,本区大致承受北北西—南南东方向的挤压作用,即菲律宾海板块与欧亚板块碰撞挤压的结果。