Acta Seismologica Sinica

, Volume 16, Issue 3, pp 312–322 | Cite as

Research on the multifractal characteristics of the temporal-spatial distribution of earthquakes over New Zealand area

  • Chen Shi-jun 
  • David Harte 
  • Ma Li 
  • Wang Li-feng 


Using the Hill estimator, general multifractal characteristics of events in the New Zealand area have been discussed. Results show that the spatial distribution of shallow events has apparent clustering characteristics, independent of the threshold magnitude; but for deep events these characteristics are not clear. While the time interval distribution has obvious clustering characteristics both for deep and shallow events, although with a different scaling range, the Hill estimates tend to indicate that the time interval distribution has a unifractal rather than a multifractal nature. All above reveal that the seismicity nature for shallow and deep events is apparently different.

Key words

multifractal unifractal shallow events moderate-to-deep events New Zealand 

CLC number



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Copyright information

© Acta Seismologica Sinica 2003

Authors and Affiliations

  • Chen Shi-jun 
    • 1
  • David Harte 
    • 2
  • Ma Li 
    • 3
  • Wang Li-feng 
    • 3
  1. 1.Seismological Bureau of Shandong ProvinceJi’nanChina
  2. 2.Statistics Research Associates LimitedWellingtonNew Zealand
  3. 3.Center for Analysis and PredictionChina Seismological BureauBeijingChina

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