Preliminary analysis on characteristics of co-seismic deformation field of the Gêrzê earthquake (Ms6.9) from ascending and descending pass ASAR radar interferometry

Author

Yaqiong, Dai ; Shunying, Hong ; Jinwei, Ren ; Xuhui, Shen

Author_Institution

Inst. of Earthquake Sci., China Earthquake Adm., Beijing, China

fYear

2009

fDate

26-30 Oct. 2009

Firstpage

144

Lastpage

147

Abstract

We process the ascending and descending mode ASAR radar data that covers the same area using 2-pass D-InSAR technology, and get the co-seismic deformation field, which provides us information on the seismic activity in the study area, in LOS direction of the Ge??rze?? (Tibet) earthquake (Ms 6.9), which happened on 9 January 2008, followed by 40 aftershocks including the largest one on 16 January 2008. The result shows that it is double earthquakes caused by two buried normal faults. The LOS deformation is from -46.0 cm to 11.4 cm by descending interferometry pair, and -47.8 cm by ascending interferometry pair.

Keywords

deformation; earthquakes; faulting; geomorphology; radar interferometry; remote sensing by radar; seismology; spaceborne radar; synthetic aperture radar; AD 2008 01 09; AD 2008 01 16; Gerze earthquake; Tibet; ascending interferometry pair; ascending pass ASAR interferometry; buried normal faults; coseismic deformation field characteristics; descending interferometry pair; descending pass ASAR interferometry; seismic activity; two pass D-InSAR technology; Earthquakes; Electric shock; Gases; Geology; Global Positioning System; Radar interferometry; Satellite broadcasting; Surfaces; Synthetic aperture radar; Synthetic aperture radar interferometry; Co-seismic Deformation; D-InSAR; Gêrzê Earthquake;

fLanguage

English

Publisher

ieee

Conference_Titel

Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on

Conference_Location

Xian, Shanxi

Print_ISBN

978-1-4244-2731-4

Electronic_ISBN

978-1-4244-2732-1

Type

conf

DOI

10.1109/APSAR.2009.5374136

Filename

5374136