Machine learning of source spectra for large earthquakes
发布时间:2022-06-11
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- DOI码:
- 10.1093/gji/ggac215
- 所属单位:
- 中国科学技术大学地球和空间科学学院
- 发表刊物:
- Geophysical Journal International
- 刊物所在地:
- 英国
- 摘要:
- The shape of earthquake source spectra, traditionally fit by physics-based models, contains important parameters to constrain rupture dimension, duration and geometry. Here we apply machine learning (ML) to derive single- and double-variable data-driven models of source spectra from 3675 Mw > 5.5 global earthquakes, assuming that the Fourier transform of source time functions represent earthquake source spectra below 1 Hz. The single-variable ML model, in the same degree of freedom as the Brune model, improves the goodness of fit by 8.5 per cent. Specifically, the ML model fits the data wit
- 第一作者:
- Shang Ma
- 合写作者:
- 李泽峰, Wei Wang
- 论文类型:
- 期刊论文
- 通讯作者:
- 李泽峰
- 论文编号:
- 24
- 学科门类:
- 理学
- 一级学科:
- 地球物理学
- 文献类型:
- SCI
- 卷号:
- 231
- 期号:
- 1
- 页面范围:
- 692-702
- ISSN号:
- 0956-540X
- 是否译文:
- 否
- 发表时间:
- 2022-06-11


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