Analysis of coseismic fault slip models of the 2012 Indian ocean earthquake: Importance of GPS data for crustal deformation studies

Endra Gunawan; Putra Maulida; Irwan Meilano; Masyhur Irsyam; Joni Efendi

doi:10.1515/acgeo-2016-0106

Analysis of coseismic fault slip models of the 2012 Indian ocean earthquake: Importance of GPS data for crustal deformation studies

Endra Gunawan
, Putra Maulida
, Irwan Meilano
, Masyhur Irsyam
, Joni Efendi

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	2136-2150
Number of pages	15
Journal	Acta Geophysica
Volume	64
Issue number	6
DOIs	https://doi.org/10.1515/acgeo-2016-0106
Publication status	Published - 1 Dec 2016
Externally published	Yes

Keywords

GPS displacement
coseismic deformation
the 2012 Indian Ocean earthquake

Access to Document

10.1515/acgeo-2016-0106

Cite this

@article{fbb21f32381b43cdab041683592801e5,

title = "Analysis of coseismic fault slip models of the 2012 Indian ocean earthquake: Importance of GPS data for crustal deformation studies",

abstract = "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.",

keywords = "GPS displacement, coseismic deformation, the 2012 Indian Ocean earthquake",

author = "Endra Gunawan and Putra Maulida and Irwan Meilano and Masyhur Irsyam and Joni Efendi",

note = "Publisher Copyright: {\textcopyright} 2016 Institute of Geophysics, Polish Academy of Sciences 2016.",

year = "2016",

month = dec,

day = "1",

doi = "10.1515/acgeo-2016-0106",

language = "English",

volume = "64",

pages = "2136--2150",

journal = "Acta Geophysica",

issn = "1895-6572",

publisher = "Springer International Publishing AG",

number = "6",

}

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

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 - https://www.scopus.com/pages/publications/85008675586

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 -

Analysis of coseismic fault slip models of the 2012 Indian ocean earthquake: Importance of GPS data for crustal deformation studies

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this