| 新版地震区划图地震活动性模型与参数确定 |
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| 引用本文： | 潘华,高孟潭,谢富仁.新版地震区划图地震活动性模型与参数确定[J].震灾防御技术,2013,8(1):11-23. |
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| 作者姓名： | 潘华 高孟潭 谢富仁 |
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| 作者单位： | 1. 中国地震局地球物理研究所,北京,100081
2. 中国地震局地壳应力研究所,北京,100085 |
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| 基金项目： | 财政部中国地震局“十一五”重大专项《中国地震动参数区划图编制》项目资助 |
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| 摘 要： | 地震活动性模型和地震动预测模型是概率地震危险性分析的两个核心。在新版地震区划图中,依据板内地震活动空间不均匀性分布的特点,在概率地震危险性分析方法(CPSHA)中采用了由地震统计区、背景潜在震源区和构造潜在震源区构成的三级层次性潜在震源区模型,并构建了相应的地震活动性模型。本文在论述CPSHA方法及其地震活动性模型基本概念的基础上,重点介绍了新版地震区划图地震活动性模型的三级潜在震源区模型的构成、地震活动性假定和基本特点,同时,也对新版地震区划图地震活动性模型的重要参数确定思路、方法与结果进行了介绍。本文将为更好地认识与理解我国新版地震动参数区划图提供有益的参考。
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| 关 键 词： | 潜在震源区 地震活动性模型 概率地震危险性分析 地震区划图 |
| 收稿时间： | 2013/2/20 0:00:00 |
The Earthquake Activity Model and Seismicity Parameters in the New Seismic Hazard Map of China |
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| Pan Hu,Gao Mengtan and Xie Furen.The Earthquake Activity Model and Seismicity Parameters in the New Seismic Hazard Map of China[J].Technology for Earthquake Disaster Prevention,2013,8(1):11-23. |
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| Authors: | Pan Hu Gao Mengtan and Xie Furen |
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| Institution: | 1) Institute of Geophysics, China Earthquake Administration, Beijing 100081, China;1) Institute of Geophysics, China Earthquake Administration, Beijing 100081, China;2) Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China |
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| Abstract: | The model of earthquake activity and the model of earthquake ground motion are two primary elements of probabilistic seismic hazard analysis. The CPSHA, a modified PSHA method, is used for the new seismic hazard map of China, which has advantages of characterizing the non-uniform spatial distribution of intraplate earthquakes in China. The earthquake activity model of CPSHA is established based on a tri-classes seismic source model, which consists of the seismic province, the of background seismicity zone, and the tectonic features zone. In this paper, the primary principles of the earthquake activity model of CPSHA are introduced firstly, and then the tri-classes seismic source and the characteristics of its earthquake recurrence model are presented in detail. Also in this paper, the general framework of determining physical seismicity parameters of the earthquake activity model used by the new seismic hazard map is described briefly and the final products are demonstrated here. This paper will be helpful for better understanding the results of the new seismic hazard map of China. |
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| Keywords: | Seismic source Earthquake activity model Probabilistic seismic hazard analysis Seismic hazard map |
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