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中文摘要：
断层通道波由地震波在断层带内低速介质和高速围岩之间的界面内侧多次反射相干而形成，只要震源和观测点在断层带内或附近，就可以观测到跟在S波后边的呈现长周期、大振幅的断层通道波。通过横跨库赛湖-玛沁断裂布设的小点距地震测线获得的断层通道波数据，利用有限差分正演模拟分析表明：库赛湖-玛沁断裂带东段（L2测线附近）的地表宽度为225m，在150m以下，断层带的宽度减小到175m。
英文摘要：
The observation of the fault-zone trapped waves was conducted on some seismic line with dense receivers across Hoh Sai lake-Maqen fault. It is found that the fault-zone trapped waves of long period and big amplitude will appear after S wave so long as the sources and observation points are located in or near the fault-zone. The finite difference forward simulation also shows that the surface rupture width of the eastern segment of Hoh Sai lakeMaqen fault is 225 m while the fault width reduce to 175 m in the depth below 150 m.
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