FAR-FIELD DEFORMATION CAUSED BY 2004 SUMATRA EARTHQUAKE
Fu Guangyu ;and Sun Wenke
Earthquake Research Institute, the University of Tokyo, Tokyo 1130032 Japan
Abstract The theoretical horizontal dispalcement field caused by the 2004 Sumatra earthquake in the SichuanYunnan area was calculated according to the spherical dislocation theory.The results show that the theoretical value of displacement field is basically consistent with the observed value in situ with GPS.On this basis,we have calculated the coseismic displacement field,strain field,changes of gravity and geoid of the whole Earth and China mainland and vicinity caused by the Sumatra earthquake.
Key words ：
the 2004 Sumatra earthquake
dislocation theory
displacement
strain
gravity change
Received: 01 January 1900
Corresponding Authors:
Fu Guangyu
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