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The first peak ground motion attenuation relationships for North of Vietnam |
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| Authors: | Le Minh Nguyen Ting-Li Lin Yih-Min WuBor-Shouh Huang Chien-Hsin ChangWin-Gee Huang Tu Son LeQuoc Cuong Nguyen Van Toan Dinh |
| Institution: | a Department of Geosciences, National Taiwan University, Taipei 106, Taiwan b Institute of Earth Sciences, Academia Sinica, P.O. Box 1-55, Nankang, Taipei 115, Taiwan c Central Weather Bureau, Taipei 100, Taiwan d Institute of Geophysics, Vietnamese Academy of Science and Technology, Hanoi, Viet Nam e Institute of Geological Sciences, Vietnamese Academy of Science and Technology, Hanoi, Viet Nam f Department of Earth Sciences, National Cheng Kung University, Tainan 701, Taiwan |
| Abstract: | The first attenuation relationships of peak ground acceleration (PGA) and peak ground velocity (PGV) for northern Vietnam are obtained in this study. Ground motion data are collected by a portable broadband seismic network in northern Vietnam as a part of cooperation between the Institute of Geophysics, Vietnamese Academy of Science and Technology, Vietnam and Institute of Earth Sciences, Academia Sinica, Taiwan. The database comprises a total of 330 amplitude records by 14 broadband stations from 53 shallow earthquakes, which were occurred in and around northern Vietnam in the period between 01/2006 and 12/2009. These earthquakes are of local magnitudes between 1.6 and 4.6, focal depths less than 30 km, and epicentral distances less than 500 km. The new attenuation relationships for PGA and PGV are: log10(PGA)=-0.987+0.7521ML-log10(R)-0.00475R, |
| Keywords: | Attenuation Peak ground motion PGA Vietnam Northern Vietnam |
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