Author contributions are as follows. Conception and design of methods and experiments: FGM and KMT. Acquisition of data: MJP and CJY. Analysis and interpretation of data: KMT, MJP, CJY and FGM. Writing of manuscript: FGM and KMT.
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Estimation of arrival times from seismic waves: a manifold-based approach†
Article first published online: 18 FEB 2011
DOI: 10.1111/j.1365-246X.2011.04947.x
© 2011 The Authors Geophysical Journal International © 2011 RAS
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How to Cite
Taylor, K. M., Procopio, M. J., Young, C. J. and Meyer, F. G. (2011), Estimation of arrival times from seismic waves: a manifold-based approach. Geophysical Journal International, 185: 435–452. doi: 10.1111/j.1365-246X.2011.04947.x
- †
Publication History
- Issue published online: 15 MAR 2011
- Article first published online: 18 FEB 2011
- Accepted 2011 January 7. Received 2011 January 6; in original form 2010 August 12
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Keywords:
- Time-series analysis;
- Seismic monitoring and test-ban treaty verifications;
- Statistical seismology
SUMMARY
We propose a new method to analyse seismic time-series and estimate the arrival times of seismic waves. Our approach combines two ingredients: the time-series are first lifted into a high-dimensional space using time-delay embedding; the resulting phase space is then parametrized using a non-linear method based on the eigenvectors of the graph Laplacian. We validate our approach using a data set of seismic events that occurred in Idaho, Montana, Wyoming and Utah between 2005 and 2006. Our approach outperforms methods based on singular-spectrum analysis, wavelet analysis and short-term average/long-term average (STA/LTA).