Aspects of Structure in Earthquake Networks

作者：Suteanu Mirela^*

来源：Pure and Applied Geophysics, 2015, 172(7): 1865-1878.

DOI：10.1007/s00024-014-0939-z

• Seismicity
• earthquakes
• networks
• Hawaii volcanoes
• nonlinear systems
• scaling properties

Analysis performed on multiple sets of earthquake networks created for the Hawaii volcanic system reveals characteristics that can be associated with fundamental properties of seismicity. The scale-free behaviour of the connectivity distribution along the spectrum of the minimum weight values, which can be used to discern the interrelated earthquakes from the rest of the data set, is mirrored by a similar behaviour of the distribution of the number of linked neighbours. The patterns found in the distributions of temporal and spatial intervals between earthquakes are similar from large to small networks. Similarities are found between the variation of the network clustering coefficient, C, and the variation of the exponents of the connectivity distribution, beta, and of the weight distribution, gamma; their synchronous variation over successive temporal windows can be related to changes in seismicity and in the life of the volcanic system. A Zipf distribution is found for the ranked sets of magnitude values of successive network nodes. The distribution of differences between the magnitude values of successive nodes is also governed by a power law.

• 出版日期2015-7