Crustal in South Korea Using the Source Pair/Receiver Pair Method
Crustal in South Korea Using the Source Pair/Receiver Pair Method
复制标题
使用源对/接收对方法的韩国地壳
DOI：
10.1785/0120030223
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发表时间：
2005
影响因子：
3
通讯作者：
Kiehwa Lee
中科院分区：
文献类型：
--
作者：
Tae;Yun Kyong Park;Ik Bom Kang;Kiehwa Lee
![图][1] 已被广泛研究，因为其区域变化反映了地质结构：1 Hz 左右的值显示与构造地震活动密切相关。我们通过将源对/接收器对 (sprp) 方法应用于 39 次韩国地震和 32 次远区地震，对韩国的 ![图][2] 进行了分析。我们获得了近 1500 个源-接收器对，其震中距 D 的组合差值范围为 16 至 657 km。使用具有五个中心频率的八极带通巴特沃斯滤波器对地震图进行滤波。 0.375、0.75、1.5、3 和 6 赫兹。获得的所有频率的 ![图形][3] 都小于 0.002，这对于地震不活跃区域来说是一个合理的值。尽管 D 的范围很短，但 sprp 方法的结果显示了可靠的值，特别是在 1.5 和 3 Hz 时。
[1]：/embed/inline-graphic-2.gif
[2]：/embed/inline-graphic-3.gif
[3]：/embed/inline-graphic-4.gif
![Graphic][1] has been studied extensively because its regional variations reflect geological structure: values around 1 Hz show close correlation with tectonic seismicity. We analyze ![Graphic][2] in South Korea by applying the source pair/receiver pair (sprp) method to 39 Korean earthquakes and 32 far-regional earthquakes. We obtain nearly 1500 source-receiver pairs with the combined difference of epicentral distance, D , ranging from 16 to 657 km. Seismograms are filtered by using an eight-pole bandpass Butterworth filter with five-center frequencies. 0.375, 0.75, 1.5, 3, and 6 Hz. The obtained ![Graphic][3] for all frequencies are less than 0.002, which is a reasonable value for a seismically inactive region. In spite of the short range of D , the results of the sprp method show reliable values, especially at 1.5 and 3 Hz.
[1]: /embed/inline-graphic-2.gif
[2]: /embed/inline-graphic-3.gif
[3]: /embed/inline-graphic-4.gif