High-rate (1-Hz and 50-Hz) GPS seismology: Application to the 2013 Mw 6.6 Lushan earthquake

Yidong Lou; Weixing Zhang; Chuang Shi; Jingnan Liu

doi:10.1016/j.jseaes.2013.10.016

High-rate (1-Hz and 50-Hz) GPS seismology: Application to the 2013 M_w 6.6 Lushan earthquake

Yidong Lou
, Weixing Zhang
, Chuang Shi^*
, Jingnan Liu

^*Corresponding author for this work

Wuhan University

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

The 2013 M_w 6.6 Lushan earthquake was successfully recorded by Crustal Movement Observation Network of China (CMONOC). Data from several near-field GPS sites were processed with kinematic PPP. The resultant position time series were subsequently processed with modified sidereal filtering and S transform to analyze seismic wave. Coseismic dynamic displacements and permanent offsets of 1-Hz sites have been retrieved and analyzed, and the P wave arrival was detected with the closest two 1-Hz stations. We compared the capacity of capturing seismic signals between 1-Hz and 50-Hz GPS measurements. The results suggest that 50-Hz GPS data are beneficial for obtaining more precise amplitude of dynamic displacements, more details of coseismic motions and broader frequency band of seismic signals. This is crucial for earthquake disaster assessment and source mechanism inversion.

Original language	English
Pages (from-to)	426-431
Number of pages	6
Journal	Journal of Asian Earth Sciences
Volume	79
DOIs	https://doi.org/10.1016/j.jseaes.2013.10.016
State	Published - 5 Jan 2014
Externally published	Yes

Keywords

Coseismic offset
Dynamic displacement
HRGPS
Lushan earthquake
P wave arrival

Access to Document

10.1016/j.jseaes.2013.10.016

Cite this

@article{9dd58e5b47cb4eb4a6536c63464126e1,

title = "High-rate (1-Hz and 50-Hz) GPS seismology: Application to the 2013 Mw 6.6 Lushan earthquake",

abstract = "The 2013 Mw 6.6 Lushan earthquake was successfully recorded by Crustal Movement Observation Network of China (CMONOC). Data from several near-field GPS sites were processed with kinematic PPP. The resultant position time series were subsequently processed with modified sidereal filtering and S transform to analyze seismic wave. Coseismic dynamic displacements and permanent offsets of 1-Hz sites have been retrieved and analyzed, and the P wave arrival was detected with the closest two 1-Hz stations. We compared the capacity of capturing seismic signals between 1-Hz and 50-Hz GPS measurements. The results suggest that 50-Hz GPS data are beneficial for obtaining more precise amplitude of dynamic displacements, more details of coseismic motions and broader frequency band of seismic signals. This is crucial for earthquake disaster assessment and source mechanism inversion.",

keywords = "Coseismic offset, Dynamic displacement, HRGPS, Lushan earthquake, P wave arrival",

author = "Yidong Lou and Weixing Zhang and Chuang Shi and Jingnan Liu",

year = "2014",

month = jan,

day = "5",

doi = "10.1016/j.jseaes.2013.10.016",

language = "英语",

volume = "79",

pages = "426--431",

journal = "Journal of Asian Earth Sciences",

issn = "1367-9120",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - High-rate (1-Hz and 50-Hz) GPS seismology

T2 - Application to the 2013 Mw 6.6 Lushan earthquake

AU - Lou, Yidong

AU - Zhang, Weixing

AU - Shi, Chuang

AU - Liu, Jingnan

PY - 2014/1/5

Y1 - 2014/1/5

N2 - The 2013 Mw 6.6 Lushan earthquake was successfully recorded by Crustal Movement Observation Network of China (CMONOC). Data from several near-field GPS sites were processed with kinematic PPP. The resultant position time series were subsequently processed with modified sidereal filtering and S transform to analyze seismic wave. Coseismic dynamic displacements and permanent offsets of 1-Hz sites have been retrieved and analyzed, and the P wave arrival was detected with the closest two 1-Hz stations. We compared the capacity of capturing seismic signals between 1-Hz and 50-Hz GPS measurements. The results suggest that 50-Hz GPS data are beneficial for obtaining more precise amplitude of dynamic displacements, more details of coseismic motions and broader frequency band of seismic signals. This is crucial for earthquake disaster assessment and source mechanism inversion.

AB - The 2013 Mw 6.6 Lushan earthquake was successfully recorded by Crustal Movement Observation Network of China (CMONOC). Data from several near-field GPS sites were processed with kinematic PPP. The resultant position time series were subsequently processed with modified sidereal filtering and S transform to analyze seismic wave. Coseismic dynamic displacements and permanent offsets of 1-Hz sites have been retrieved and analyzed, and the P wave arrival was detected with the closest two 1-Hz stations. We compared the capacity of capturing seismic signals between 1-Hz and 50-Hz GPS measurements. The results suggest that 50-Hz GPS data are beneficial for obtaining more precise amplitude of dynamic displacements, more details of coseismic motions and broader frequency band of seismic signals. This is crucial for earthquake disaster assessment and source mechanism inversion.

KW - Coseismic offset

KW - Dynamic displacement

KW - HRGPS

KW - Lushan earthquake

KW - P wave arrival

UR - https://www.scopus.com/pages/publications/84886996762

U2 - 10.1016/j.jseaes.2013.10.016

DO - 10.1016/j.jseaes.2013.10.016

M3 - 文章

AN - SCOPUS:84886996762

SN - 1367-9120

VL - 79

SP - 426

EP - 431

JO - Journal of Asian Earth Sciences

JF - Journal of Asian Earth Sciences

ER -

High-rate (1-Hz and 50-Hz) GPS seismology: Application to the 2013 M_w 6.6 Lushan earthquake

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this