Scaling relation between earthquake magnitude and the departure time from P wave similar growth

Scaling relation between earthquake magnitude and the departure time from P wave similar growth
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地震震级与P波相似增长离开时间的标度关系

DOI:
10.1002/2016gl070069
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发表时间:
2016
影响因子:
5.2
通讯作者:
W. Ellsworth
W. Ellsworth
中科院分区:
地球科学1区
文献类型:
--
作者:
S. Noda;W. Ellsworth

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本文引入了一种新的震级(M)与P波初位移特征之间的标度关系。通过检查日本K‐NET数据平均值,在由Mw和震源距离划分的箱中,我们证明了P波位移在破裂开始时短暂地显示出类似的增长,并且偏离时间(Tdp),其定义为应用带通滤波器后偏离绝对位移相似性的时间,与最终M在4.5 ≤ Mw ≤ 7的范围内相关。Mw和Tdp之间的标度关系意味着,有用的信息,最终M可以得出,而事件仍在进行中,因为Tdp发生在破裂完成之前。我们的结论是,标度关系不仅是重要的地震预警,而且震源物理。
We introduce a new scaling relation between earthquake magnitude (M) and a characteristic of initial P wave displacement. By examining Japanese K‐NET data averaged in bins partitioned by Mw and hypocentral distance, we demonstrate that the P wave displacement briefly displays similar growth at the onset of rupture and that the departure time (Tdp), which is defined as the time of departure from similarity of the absolute displacement after applying a band‐pass filter, correlates with the final M in a range of 4.5 ≤ Mw ≤ 7. The scaling relation between Mw and Tdp implies that useful information on the final M can be derived while the event is still in progress because Tdp occurs before the completion of rupture. We conclude that the scaling relation is important not only for earthquake early warning but also for the source physics of earthquakes.
DOI: 10.1029/2009jb007122
发表时间: 2010-11
影响因子: --
作者:
T. Uchide;S. Ide
通讯作者: T. Uchide;S. Ide
DOI: --
发表时间: 2009
期刊:
影响因子: --
作者:
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通讯作者: 宮田康治
DOI: 10.1002/2014jb011220
发表时间: 2014-08-01
影响因子: 3.9
作者:
McLaskey, Gregory C.;Lockner, David A.
通讯作者: Lockner, David A.