Descriptive statistical model of earthquake source radiation and its application to an estimation of short‐period strong motion
Descriptive statistical model of earthquake source radiation and its application to an estimation of short‐period strong motion
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震源辐射描述统计模型及其在短周期强震估计中的应用
DOI：
10.1111/j.1365-246x.1983.tb01904.x
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发表时间：
1983
影响因子：
2.8
通讯作者：
A. Gusev
中科院分区：
文献类型：
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作者：
A. Gusev
摘要本文从不同的资料来源导出了一个宽频带源谱标度律，它的主要特点是：缺乏相似性，有两个约为0.2Hz和5-10 Hz的特征频率。震源表面的平均短周期辐射通量与震级关系不大，约为3 × 10 'erg cm-2 s，短周期效率约为10%，对于大地震震源，短周期辐射通量相对较低。谱标度律用于确定近场加速度。推导了非相干辐射源的“静态”和波场加速度的估计公式，并应用于计算最大加速度与强度、距离与震级之间的平均关系。理论关系与经验关系吻合得很好。
Summary. A wide-band source spectrum scaling law is derived from various data sources; its main features are: a lack of similitude and two characteristic frequencies of about 0.2 and 5-10 Hz. An average short-period radiation flux from the source surface does not greatly depend on magnitude; it is about 3 x lO'erg cm-2 s and short-period efficiency is about 10 per cent. For sources of great earthquakes a short-period radiation flux is relatively low. The spectrum scaling law is used to determine near-field accelerations. Formulae to estimate 'static' and wavefield accelerations of incoherently radiating sources are derived and applied to calculate the average relation between maximum acceleration and intensity, and distance and magnitude. Theoretical relations agree well with the empirical ones.
DOI：
--
发表时间：
1975-10
期刊：
--
影响因子：
--
作者：
H. Kanamori;D. L. Anderson
通讯作者：
H. Kanamori;D. L. Anderson