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Improved characterization of local seismicity using the Dubai Seismic Network, United Arab Emirates

机译：使用阿拉伯联合酋长国的迪拜地震网络改进了局部地震活动的表征

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摘要

In April 2006, Dubai Municipality established a broadband seismological network in Dubai Emirate, United Arab Emirates (UAE). This network was the first seismic network in UAE and consists of four remote seismic stations to observe local and regional seismic activity that may have an effect on Dubai Emirate and the surrounding areas. The network exchanges real-time data with the National Center of Meteorology and Seismology in Abu Dhabi, the Earthquake Monitoring Center in Oman and imports in real-time data from few Global Seismic Network stations, which increases the aperture of the network. In April 2012, Dubai Municipality installed an additional five free-field strong motion stations inside the urban area to estimate and publish real-time ShakeMaps for public and decision makers. Although the local seismic activity from April 2006 to June 2013 reflects low seismic activity with the Emirate, it indicates active tectonics in the relatively aseismic northern Oman Mountains region. A few inland clusters of micro-to-small earthquakes have been identified with the new network. A clear cluster of small-to-moderate earthquakes took place in the eastern part of UAE to the east of Masafi, while two clusters of micro-to-small earthquakes took place at Wadi Nazwa and northern Huwaylat. Focal mechanisms of few well recorded earthquakes in this region indicate normal faulting, generally trending NE in parallel to the transition shear zone between the collision at Zagros and the subduction at the Makran zone.
机译：2006年4月，迪拜市政府在阿拉伯联合酋长国迪拜酋长国迪拜建立了宽带地震学网络。该网络是阿联酋的第一个地震网络，由四个远程地震台组成，用于观察可能对迪拜酋长国及周边地区产生影响的本地和区域地震活动。该网络与阿布扎比国家气象和地震中心，阿曼地震监测中心交换实时数据，并从几个全球地震台站导入实时数据，这增加了网络的通透性。 2012年4月，迪拜市政府在市区内安装了另外五个自由场强运动台，以估算和发布实时ShakeMap，供公众和决策者使用。尽管2006年4月至2013年6月的当地地震活动反映出阿联酋的地震活动较低，但这表明在阿曼北部相对抗震的地区构造活动活跃。新的网络已经确定了一些内陆微到小地震的集群。阿联酋东部马萨菲东部地区发生了清晰的中小型地震群，而瓦迪纳兹瓦和胡韦拉特北部则发生了两起微小型地震群。该地区很少有记录良好的地震的震源机制表明是正常的断层，通常在与Zagros碰撞和Makran俯冲之间的过渡剪切带平行的方向上出现NE。

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  • 来源
    《Journal of Asian earth sciences》 |2014年第15期|34-44|共11页
  • 作者

    Eman Al Khatibi; K.M. Abou Elenean; A.S. Megahed; I. El-Hussain;

  • 作者单位

    Dubai Municipality, Survey Section, P.O. Box 67, Dubai, United Arab Emirates;

    Dubai Municipality, Survey Section, P.O. Box 67, Dubai, United Arab Emirates,Seismology Department, National Research Institute of Astronomy and Geophysics (NRIAC), Helwan, Egypt;

    Abu Dhabi City Municipality, Spatial Data Division, P.O. Box 263, Abu Dhabi, United Arab Emirates,Seismology Department, National Research Institute of Astronomy and Geophysics (NRIAC), Helwan, Egypt;

    Earthquake Monitoring Center, Sultan Qaboos University, P.O. Box 50, Al-Khoudh PC 123, Muscat, Oman;

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  • 正文语种 eng
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  • 关键词

    Dubai Seismic Network; Seismicity of northeastern UAE-Oman; Mountain; Regional waveform inversion;

    机译：迪拜地震台网;阿联酋阿曼东北部的地震活动;山;区域波形反演;

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