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Real-Time Mapping of PGA Distribution in Tehran Using TRRNet and peeqMap

机译:使用TRRNet和peeqMap实时映射德黑兰的PGA分布

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摘要

Tehran megacity, the political and economical capital of Iran with population of more than eight million residents, is situated in the seismically active zone of Alborz. The seismicity pattern of this zone shows occurrence of large earthquakes in long time periods (Masson et al., 2005). Several large earthquakes such as the 855 A.D. M_s 7.1, the 958 A.D. M_s 7.7, and the 1117 A.D. M_s 7.2 in the historical seismic catalog of Tehran and surrounding area proves that the city has a high level of seismic risk (Fig. 1). The last disastrous example among these earthquakes was in 1830, and the city is waiting for the next large earthquake (Ambraseys and Melville, 1982; Ashtari- Jafari, 2010). Several active faults surround Tehran including North Tehran fault, Eyvanekey fault, North and South Ray faults (Fig. 1). Apart from existence of several active faults around the city, fast growth of population and urbanization in previous decades, and lack of strong regulations for urban development increased the vulnerability of Tehran to moderate to large earthquakes (Amini-Hosseini et al., 2009).
机译:德黑兰特大城市,是伊朗的政治和经济之都,人口超过800万,坐落在Alborz地震活跃区。该区域的地震活动模式表明,长期以来发生了大地震(Masson等,2005)。德黑兰及周边地区历史地震目录中的几次大地震,例如855 A.D. 7.1级,958 A.D. 7.7级和1117 A.D 7.2级,证明该城市地震风险很高(图1)。在这些地震中,最后一个灾难性的例子是1830年,这座城市正在等待下一场大地震(Ambraseys和Melville,1982; Astari-Jafari,2010)。德黑兰周围有几个活动断层,包括北德黑兰断层,Eyvanekey断层,南雷断层和南雷断层(图1)。除了在城市周围存在一些活跃的断层外,在过去的几十年中人口的快速增长和城市化进程的发展,以及缺乏强有力的城市发展法规,都增加了德黑兰遭受中度到大地震的脆弱性(Amini-Hosseini等,2009)。

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