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    請使用永久網址來引用或連結此文件: https://ir.cnu.edu.tw/handle/310902800/29616


    標題: Monet Wavelet Analysis of M-L >= 3 Earthquakes in the Taipei Metropolitan Area
    作者: Chen, Kou-Cheng
    Wang, Jeen-Hwa
    Kim, Kwang-Hee
    Huang, Win-Gee
    Chang, Kao-Hao
    Wang, Jeng-Cheng
    Leu, Pei-Ling
    貢獻者: 應用空間資訊系
    關鍵字: Seismicity
    Number of monthly events
    Morlet wavelet analysis
    Wavelet power spectrum
    Global power spectrum
    Dominant period
    日期: 2015-04
    上傳時間: 2016-04-19 19:02:09 (UTC+8)
    出版者: Chinese Geoscience Union
    摘要: M-L >= 3 earthquakes (M-L = local magnitude) that occurred in the Taipei Metropolitan Area (TMA) from 1973 - 2013 are selected to study the dominant seismicity period of this area. The epicentral distribution and temporal sequences of earthquake magnitudes are simply described. These earthquakes can be divided into two groups: one for events shallower than 40 km and one for events deeper than 60 km. Shallow earthquakes are located mainly in the 0 - 10 km depth range north of 25.1 degrees N, and down to 35 km for those south of 25.1 degrees N. Deep events are located in the subduction zone, with a dip angle of about 70 degrees. The Morlet wavelet technique is applied to analyze the dominant periods of temporal variations in numbers of monthly earthquakes in the shallow and deep ranges for three magnitude ranges, i.e., M-L >= 3, 4, and 5. The results show that for shallow earthquakes the dominant periods are 15.4, 30.8, 66.1, and 132.2 months when M-L >= 3 and 30.8 months when M-L >= 4; while for deep earthquakes, the dominant periods are 16.5 and 141.7 months when M-L >= 3 and 141.7 months when M-L >= 4. The dominant period cannot be obtained for both shallow and deep M-L >= 5 earthquakes.
    關聯: Terrestrial Atmospheric And Oceanic Sciences, v.26 n.2, pp.83-94
    顯示於類別:[應用空間資訊系(所)] 期刊論文

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