Outline of vertical displacement of the 2004 and 2005 Sumatra earthquakes revealed by satellite radar imagery
Outline of vertical displacement of the 2004 and 2005 Sumatra earthquakes revealed by satellite radar imagery
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卫星雷达图像揭示的 2004 年和 2005 年苏门答腊地震垂直位移轮廓
DOI：
10.1186/bf03351906
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
M. Murakami
中科院分区：
文献类型：
--
作者：
M. Tobita;H. Suito;T. Imakiire;Minoru Kato;S. Fujiwara;M. Murakami
对2004年和2005年苏门答腊地震前后的卫星雷达图像的分析揭示了沿着俯冲带岛屿的隆起和淹没模式的概况，并提供了经历同震垂直变形的区域的轮廓。我们发现了从安达曼群岛北方端到尼亚斯岛的地壳变形的证据。海沟以东145km的一条线将西部隆起带和东部沉降带分隔开来。与现场观测结果的一致性证明了该方法的可行性。我们发现，雷达图像分析是更有效的调查垂直位移比类似的技术，使用光学传感器。
Analyses of satellite radar imagery before and after the 2004 and 2005 Sumatra earthquakes reveal an overview of the uplift and submergence pattern of islands along the subduction zone and provide an outline of the regions that experienced coseismic vertical deformation. We find evidence of crustal deformation from the northern tip of the Andaman Islands to Nias Island. A line 145 km east of the trench separates western uplifted zone from eastern subsided zone. Agreement with the field observation demonstrates the feasibility of our method. We find that radar imagery analysis is more efficient for investigating vertical displacements than similar techniques using optical sensors.