Universal law for waiting internal time in seismicity and its implication to earthquake network

Universal law for waiting internal time in seismicity and its implication to earthquake network
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DOI:
10.1209/0295-5075/97/49002
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发表时间:
2012-02
期刊:
EPL (Europhysics Letters)
影响因子:
--
通讯作者:
S. Abe;N. Suzuki
S. Abe;N. Suzuki
中科院分区:
其他
文献类型:
--
作者:
S. Abe;N. Suzuki

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在他们的论文(Europhys.信件:71(2005)1036),Carbone,Sorriso-Valvo,Harabaglia和Guerra表明,巴克等人(Phys. Rev. Lett.,88(2002)178501)实际上并不普遍。在这里,而不是传统的时间,内部时间的概念称为事件时间被认为是地震活动。结果表明,与传统的等待时间相比,等待事件时间服从幂律。这意味着存在的时间长程相关性的事件时间没有急剧衰减的交叉类型。所发现的幂律等待事件时间分布是普遍的,因为它在加州、日本和伊朗的地震活动中采用了相同的形式。特别是,分布中包含的参数采用所有这些地理区域的共同值。本文还讨论了这一结果对地震台网建设的意义。
In their paper (Europhys. Lett., 71 (2005) 1036), Carbone, Sorriso-Valvo, Harabaglia and Guerra showed that the “unified scaling law” for conventional waiting times of earthquakes claimed by Bak et al. (Phys. Rev. Lett., 88 (2002) 178501) is actually not universal. Here, instead of the conventional time, the concept of the internal time termed the event time is considered for seismicity. It is shown that, in contrast to the conventional waiting time, the waiting event time obeys a power law. This implies the existence of temporal long-range correlations in terms of the event time with no sharp decay of the crossover type. The discovered power-law waiting event-time distribution turns out to be universal in the sense that it takes the same form for seismicities in California, Japan and Iran. In particular, the parameters contained in the distribution take the common values in all these geographical regions. An implication of this result to the procedure of constructing earthquake networks is discussed.