Measuring Ground Deformations Caused by Nepal MW 7.8 and MW 7.3 Earthquakes Using 1 Hz GPS Data
Abstract We derive dynamic ground deformations caused by the 2015 Nepal MW7.8 and MW7.3 earthquakes on the basis of 1 Hz GPS data of crustal movement observation network of China (CMONOC) and Nepal using kinematic relative positioning method. The results show that the displacement amplitudes of eastern GPS sites of the MW7.8 earthquake are larger than the western. The kinematic deformations of each station arenot only associated with epicentral distance but also earthquake rupture propagation directivity. Dynamic ground motions caused by the MW7.3 earthquake are small. We find good agreement between high-rate GPS and strong motion displacements time series.
Key words ：
high-rate GPS
Nepal MW7.8,MW7.3 earthquakes
dynamic ground deformations
Cite this article:
HUANG Yong,YANG Shaomin,QIAO Xuejun et al. Measuring Ground Deformations Caused by Nepal MW 7.8 and MW 7.3 Earthquakes Using 1 Hz GPS Data
[J]. jgg, 2017, 37(3): 221-223.
HUANG Yong,YANG Shaomin,QIAO Xuejun et al. Measuring Ground Deformations Caused by Nepal MW 7.8 and MW 7.3 Earthquakes Using 1 Hz GPS Data
[J]. jgg, 2017, 37(3): 221-223.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2017/V37/I3/221
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