TY - JOUR
T1 - Analysis of coseismic fault slip models of the 2012 Indian ocean earthquake
T2 - Importance of GPS data for crustal deformation studies
AU - Gunawan, Endra
AU - Maulida, Putra
AU - Meilano, Irwan
AU - Irsyam, Masyhur
AU - Efendi, Joni
N1 - Publisher Copyright:
© 2016 Institute of Geophysics, Polish Academy of Sciences 2016.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - Based on continuous GPS data, we analyze coseismic deformation due to the 2012 Indian Ocean earthquake. We use the available coseismic slip models of the 2012 earthquake, derived from geodetic and/or seismic waveform inversion, to calculate the coseismic displacements in the Andaman-Nicobar, Sumatra and Java. In our analysis, we employ a spherical, layered model of the Earth and we find that Java Island experienced coseismic displacements up to 8 mm, as also observed by our GPS network. Compared to coseismic offsets measured from GPS data, a coseismic slip model derived from multiple observations produced better results than a model based on a single type of observation.
AB - Based on continuous GPS data, we analyze coseismic deformation due to the 2012 Indian Ocean earthquake. We use the available coseismic slip models of the 2012 earthquake, derived from geodetic and/or seismic waveform inversion, to calculate the coseismic displacements in the Andaman-Nicobar, Sumatra and Java. In our analysis, we employ a spherical, layered model of the Earth and we find that Java Island experienced coseismic displacements up to 8 mm, as also observed by our GPS network. Compared to coseismic offsets measured from GPS data, a coseismic slip model derived from multiple observations produced better results than a model based on a single type of observation.
KW - GPS displacement
KW - coseismic deformation
KW - the 2012 Indian Ocean earthquake
UR - http://www.scopus.com/inward/record.url?scp=85008675586&partnerID=8YFLogxK
U2 - 10.1515/acgeo-2016-0106
DO - 10.1515/acgeo-2016-0106
M3 - Article
AN - SCOPUS:85008675586
SN - 1895-6572
VL - 64
SP - 2136
EP - 2150
JO - Acta Geophysica
JF - Acta Geophysica
IS - 6
ER -