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| Comparing seismic hazard software packages : M3C vs. OpenQuake | |
| 出版日期 | 2019 |
| 出版者 | British Geological Survey |
| 英文摘要 | This report describes a comparison of the software M3C with the software OpenQuake that have been developed for seismic hazard and risk assessment (Pagani at al., 2014). The comparison is made in terms of methodology, IT functionalities of the software packages and hazard results. The goal of the report is to show that the code M3C, which was developed at the British Geological Survey (BGS) in the second half of the 1990s for probabilistic seismic hazard assessment, compares well with more modern methods as a result of regular updates to incorporate advances in seismic hazard analysis and other state-of-art techniques. The frequent testing and quality assurance of the new features of the code ensures that it is an excellent tool for assessing seismic hazard for commercial and academic projects. We perform a comparison between M3C and OpenQuake using the source model of the UK developed by Musson and Sargeant (2007). OpenQuake is an open-source software package for seismic hazard and risk calculations developed by the Global Earthquake Model initiative (Crowley et al., 2013). We perform many tests to compare the implementation of the basic steps of the probabilistic seismic hazard assessment in the two software packages, including the ground motion prediction equations, the fault rupture modelling, and the treatment of epistemic uncertainties in the recurrence statistics. The main conclusion from the present work is that if input parameters are identical, the outputs from the two software packages are in excellent agreement. When I estimate the relative difference between the outputs, the agreement is good for annual probabilities of exceedance between 10-2 and 10-5, i.e. the range of interest of earthquake engineering, in spite of the differences in the implementation of the methodology and the IT functionalities of M3C and OpenQuake. The discrepancies between the results are explained by: 1) the different magnitude scaling relationship adopted by M3C and OpenQuake; and 2) the use of ground motion predictive equations based on the rupture distance, rather than the Joyner-Boore distance. |
| URL | http://nora.nerc.ac.uk/id/eprint/523963/1/OR19038.pdf |
| 国家 | 英国 |
| 语种 | 英语 |
| 来源机构 | 英国自然环境研究理事会 |
| 文献类型 | 科技报告 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/86202 |
| 推荐引用方式 GB/T 7714 | . Comparing seismic hazard software packages : M3C vs. OpenQuake:British Geological Survey,2019. |
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| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 523963.pdf（1578KB） | 科技报告 | 开放获取 | CC BY-NC-SA | 浏览 下载 | ||
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