Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
|Title:||Rapid 3-D earthquake location using a hybrid global-local inversion approach|
|Citation:||Pure and Applied Geophysics, 2010; 167(11):1377-1387|
|Publisher:||Birkhauser Verlag Ag|
|Chao-ying Bai, Rui Zhao and Stewart Greenhalgh|
|Abstract:||A novel hybrid approach to earthquake location is proposed which uses a combined coarse global search and fine local inversion with a minimum search routine. The method exploits the advantages of network ray tracing and robust formulation of the Fréchet derivatives to simultaneously update all sampled initial source parameters in the solution space to determine the best solution. Synthetic examples, involving a three-dimensional (3-D) complex velocity model and a challenging source–receiver layout, are used to demonstrate the advantages over direct grid search algorithms in terms of solution accuracy, computational efficiency, and sensitivity to noise. Therefore, this is a promising scheme for earthquake early warning, tsunami early warning, rapid hazard assessment, and emergency response after strong earthquake occurrence.|
|Keywords:||3-D complex velocity model; network ray tracing; matrix inversion; earthquake location; RMS error space inspection|
|Rights:||© 2010 Birkhauser / Springer Basel AG|
|Appears in Collections:||Physics publications|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.