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Modelling heterogeneous space–time occurrences of earthquakes and its residual analysis |
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| Authors: | Yosihiko Ogata Koichi Katsura Masaharu Tanemura |
| Institution: | Institute of Statistical Mathematics, Tokyo, Japan |
| Abstract: | Summary. Earthquake intensities are modelled as a function of previous activity whose specific form is based on established empirical laws in seismology, but whose parameter values can vary from place to place. This model is used for characterizing regional features of seismic activities in and around Japan, and also for exploring regions where the actual seismicity rate systematically deviates from that of the modelled rate. |
| Keywords: | Conditional intensity function Delaunay tessellation (two dimensional and three dimensional) Hierarchical Bayesian model Penalized log-likelihood Relative seismic quiescence Residual image Seismic gaps Space–time point processes |