Issue |
EPL
Volume 97, Number 4, February 2012
|
|
---|---|---|
Article Number | 49002 | |
Number of page(s) | 5 | |
Section | Geophysics, Astronomy and Astrophysics | |
DOI | https://doi.org/10.1209/0295-5075/97/49002 | |
Published online | 16 February 2012 |
Universal law for waiting internal time in seismicity and its implication to earthquake network
1
Department of Physical Engineering, Mie University - Mie 514-8507, Japan
2
College of Science and Technology, Nihon University - Chiba 274-8501, Japan
Received:
16
August
2011
Accepted:
6
January
2012
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.
PACS: 91.30.Dk – Seismicity / 05.65.+b – Self-organized systems / 89.75.Da – Systems obeying scaling laws
© EPLA, 2012
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.