Three-Dimensional Finite Difference Simulation of Ground Motions from the August 24, 2014 South Napa Earthquake

doi:10.2172/1229850

GSTDTAP > 地球科学

DOI	10.2172/1229850
报告编号	LLNL-TR--673182
来源ID	OSTI ID: 1229850
	Three-Dimensional Finite Difference Simulation of Ground Motions from the August 24, 2014 South Napa Earthquake
	Rodgers, Arthur J.; Dreger, Douglas S.; Pitarka, Arben
	2015-06-15
出版年	2015
页数	5
语种	英语
国家	美国
领域	地球科学
英文摘要	We performed three-dimensional (3D) anelastic ground motion simulations of the South Napa earthquake to investigate the performance of different finite rupture models and the effects of 3D structure on the observed wavefield. We considered rupture models reported by Dreger et al. (2015), Ji et al., (2015), Wei et al. (2015) and Melgar et al. (2015). We used the SW4 anelastic finite difference code developed at Lawrence Livermore National Laboratory (Petersson and Sjogreen, 2013) and distributed by the Computational Infrastructure for Geodynamics. This code can compute the seismic response for fully 3D sub-surface models, including surface topography and linear anelasticity. We use the 3D geologic/seismic model of the San Francisco Bay Area developed by the United States Geological Survey (Aagaard et al., 2008, 2010). Evaluation of earlier versions of this model indicated that the structure can reproduce main features of observed waveforms from moderate earthquakes (Rodgers et al., 2008; Kim et al., 2010). Simulations were performed for a domain covering local distances (< 25 km) and resolution providing simulated ground motions valid to 1 Hz.
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来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/7071
专题	地球科学
推荐引用方式 GB/T 7714	Rodgers, Arthur J.,Dreger, Douglas S.,Pitarka, Arben. Three-Dimensional Finite Difference Simulation of Ground Motions from the August 24, 2014 South Napa Earthquake,2015.