The 2022 SSJ Fall Meeting

Presentation information

Print

Room B

Regular session » S09. Statistical seismology and underlying physical processes

[S09] AM-1

Mon. Oct 24, 2022 9:30 AM - 10:30 AM ROOM B (4th floor (Large Conference Room))

chairperson:Takao Kumazawa(Institute of Statistical Mathematics), Kazuyoshi Nanjo(University of Shizuoka)

9:30 AM - 9:45 AM

[S09-01] The research and application of the spherical space-time ETAS model

*ZIYAO XIONG1, Jiancang Zhuang1 (1. The Institute of Statistical Mathematics)

The spherical space-time ETAS model is modified from the widely used planar space-time ETAS model (Zhuang et al., 2002; Zhuang, 2012). Different from the traditional space-time ETAS model is only suitable for studying within a small space range; the new version is applicable to analyze and forecast seismicity in high latitude regions or on a global scale. Apply the global CMT catalog to the new model, showing that the model can reasonably simulate the global seismicity variation. And the model supports better modeling of seismic activities and interactions in global regions. Moreover, we calculate the seismicity rates of the seismicity belt in the global area to further analyze the characteristics of earthquake sequences.