Multiple lapse time window analysis using solely single events in South Korea
Asep Nur Rachman 1 Tae Woong Chung 1 3 Kyung-Hoon Chung 2
+ Author Affiliations
- Author Affiliations
1 Department of Energy and Mineral Resources Engineering, Sejong University, Seoul 143-747, Korea.
2 Department of Mechanical Engineering, Korea University, Seoul 136-713, Korea.
3 Corresponding author. Email: chungtw@sejong.ac.kr
Exploration Geophysics 48(4) 504-511 https://doi.org/10.1071/EG16098
Submitted: 8 August 2016 Accepted: 8 August 2016 Published: 9 September 2016
Journal Compilation © ASEG Open Access CC BY-NC-ND
Abstract
Scattering (Qs–1) and intrinsic (Qi–1) attenuation, important parameters for inferring both the materials and the physical condition of the regional lithosphere, are generally separated by the method of multiple lapse time window analysis (MLTWA). Recently, depth variation of crustal Qs–1 and Qi–1 by applying single events to MLTWA was first shown; however, this application inevitably combined several events due to insufficient data caused by a window with limited range. In this study, we demonstrated that a flexible range window can be applied successfully to solely single events in MLTWA. In particular, a more reliable constraint was obtained than in the previous study, with a reduced amount of data. This technique may be particularly useful for seismically stable regions due to the limitation of available combinations of similar depth events.
Key words: Qs–1, Qi–1, flexible range window, MLTWA, wide single events.
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