Journal of Northeastern University:Natural Science ›› 2015, Vol. 36 ›› Issue (9): 1232-1236.DOI: 10.3969/j.issn.1005-3026.2015.09.004

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Dynamic Evolution Analysis of the Earthquake Network Based on the Time-Space Influence Domain

ZHAO Hai, ZHANG Ya, HE Xuan, ZHAO Nan   

  1. School of Information Science & Engineering, Northeastern University, Shenyang 110819, China.
  • Received:2014-07-31 Revised:2014-07-31 Online:2015-09-15 Published:2015-09-14
  • Contact: ZHANG Ya
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Abstract: Based on the earthquake network of the time-space influence domain, the topology of seismicity around the main shock was analyzed for the network’s dynamic behaviors. It was found that the scale and the entropy were small while the modularity was big before the main shock; the scale increased greatly, the entropy jumped to a high value and the modularity reached a minimum value after the main shock. Meanwhile, the multi-parameter evolution of the topology of seismicity in 1992 was analyzed, whose results showed that the earthquake network exhibited a inner dynamic behavior. In addition, the modularity took a maximum value, the entropy had a minimum value, and they presented good negative correlation.

Key words: earthquake network, vertices, edge, entropy, modularity, evolution

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