Earthquake networks based on similar activity patterns

Details Earthquake networks based on similar activity patterns Earthquake networks based on similar activity patterns

2011-05-17

arxiv.org/abs/1105.3415v1

Physics

Geophysics

5 pages text, 8 figures

Scientific paper

Earthquakes are a complex spatiotemporal phenomenon the underlying mechanism for which is still not fully understood despite decades of research and analysis. We propose and develop a network approach to earthquake events. In this network, a node represents a spatial location while a link between two nodes represents similar activity patterns in the two different locations. The strength of a link is proportional to the strength of the cross-correlation. We apply our network approach to a Japanese earthquake catalog spanning the 14-year period 1985-1998. We find strong links representing large correlations between patterns in locations separated by more than 1000 km. We also find significant similarities in the network structure upon comparing different time periods.

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