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首页> 外文期刊>Romanian journal of physics >RAPID MAGNITUDE DETERMINATION FOR VRANCEA EARLY WARNING SYSTEM
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RAPID MAGNITUDE DETERMINATION FOR VRANCEA EARLY WARNING SYSTEM

机译:VRANCEA早期预警系统的快速定量测定

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摘要

Due to the huge amount of recorded data, an automatic procedure was developed and used to test different methods to rapidly evaluate earthquake magnitude from the first seconds of the P wave. In order to test all the algorithms involved in detection and rapid earthquake magnitude estimation, several tests were performed, in order to avoid false alarms. A special detection algorithm was developed, that is based on the classical STA/LTA algorithm and tuned for early warning purpose. A method to rapidly estimate magnitude in 4 seconds from detection of P wave in the epicenter is proposed. The method was tested on al recorded data, and the magnitude error determination is acceptable taking into account that it is computed from only 3 stations in a very short time interval.
机译:由于记录的数据量巨大,因此开发了一种自动程序,并用于测试不同的方法,以从P波的最初几秒钟开始快速评估地震震级。为了测试与探测和快速地震震级估计有关的所有算法,进行了几次测试,以避免误报。开发了一种特殊的检测算法,该算法基于经典的STA / LTA算法并针对预警目的进行了调整。提出了一种从震中检测到P波后4秒内快速估计震级的方法。该方法已在所有记录的数据上进行了测试,考虑到它是在非常短的时间间隔内仅从3个站点计算得出的,因此可以确定幅度误差。

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