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Correlation between surface damage and the coseismic displacement and stress relaxation of the 1999 Chi‐Chi, Taiwan Earthquake
Author(s) -
Shieh ChiouFen,
Sheu ShyhYang,
Shih RueyChyuan
Publication year - 2001
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2001gl013236
Subject(s) - geology , seismology , displacement (psychology) , deformation (meteorology) , relaxation (psychology) , stress (linguistics) , landslide , fault (geology) , geodesy , medicine , philosophy , psychology , linguistics , oceanography , psychotherapist
Various types of damage caused by the devastating 1999 Chi‐Chi, Taiwan earthquake were not only experienced in the hanging wall and footwall but also in the southern and northern parts of the Chelungpu fault. In this paper, we determine the coseismic displacements and determine stress relaxation using a rupture model and compare the values with surface damage. The patterns of damage can be clearly correlated with the calculated coseismic displacement and stress relaxation caused by the event. It is found that the surface damage was predominately caused by coseismic deformation and that large‐scale landslides were mainly a result of steep coseismic displacements.