Bayesian maximum entropy interpolation analysis for rapid assessment of seismic intensity using station and ground motion prediction equations

被引:1
|
作者
Kang, Dengjie [1 ]
Chen, Wenkai [1 ]
Jia, Yijiao [1 ]
机构
[1] China Earthquake Adm, Lanzhou Inst Seismol, Lanzhou, Peoples R China
关键词
spatial interpolation; bayesian maximum entropy; GMPE; seismic intensity; disaster information service; MODIFIED MERCALLI INTENSITY; EMPIRICAL RELATIONSHIPS; ACCELERATION; PARAMETERS; MODEL; PGV;
D O I
10.3389/feart.2024.1394937
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
In this paper, we explored the combination of seismic station data and ground motion prediction equations (GMPE) to predict seismic intensity results by using Bayesian Maximum Entropy (BME) method. The results indicate that: 1) In earthquake analysis in Japan, soft data has predicted higher values of intensity in disaster areas. BME corrected this phenomenon, especially near the epicenter. Meanwhile, for earthquakes in the United States, BME corrected the erroneous prediction of rupture direction using soft data. 2) Compared with other spatial interpolation methods, the profile results of Japan earthquake and Turkey earthquake show that BME is more consistent with ShakeMap results than IDW and Kriging. Moreover, IDW has a low intensity anomaly zone. 3) The BME method overcomes the phenomenon that the strength evaluation results do not match the actual failure situation when the moment magnitude is small. It more accurately delineates the scope of the disaster area and enriches the post-earthquake processing of disaster area information and data. BME has a wide range of applicability, and it can still be effectively used for interpolation analysis when there is only soft data or few sites with data available.
引用
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页数:13
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