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.
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Alif, S.M., I. Meilano, E. Gunawan, and J. Efendi (2016), Evidence of postseismic deformation signal of the 2007 M8.5 Bengkulu earthquake and the 2012 M8.6 Indian Ocean earthquake in Southern Sumatra, Indonesia, based on GPS data, J. Appl. Geod. 0, 2, 103–108, DOI: 10.1515/jag-2015-0019.
Altamimi, Z., X. Collilieux, and L. Métivier (2011), ITRF2008: an improved solution of the international terrestrial reference frame, J. Geod. 85, 8, 457–473, DOI: 10.1007/s00190-011-0444-4.
Anugrah, B., I. Meilano, E. Gunawan, and J. Efendi (2015), Estimation of postseismic deformation parameters from continuous GPS data in northern Sumatra after the 2004 Sumatra–Andaman earthquake, Earthq. Sci. 28, 5–6, 347–352, DOI: 10.1007/s11589-015-0136-x.
Ardika, M., I. Meilano, and E. Gunawan (2015), Postseismic deformation parameters of the 2010 M7.8 Mentawai, Indonesia, earthquake inferred from continuous GPS observations, Asian. J. Earth Sci. 8, 4, 127–133, DOI: 10.3923/ajes.2015.127.133.
Delescluse, M., N. Chamot-Rooke, R. Cattin, L. Fleitout, O. Trubienko, and C. Vigny (2012), April 2012 intra-oceanic seismicity off Sumatra boosted by the Banda-Aceh megathrust, Nature 490, 7419, 240–244, DOI: 10.1038/ nature11520.
Duputel, Z., H. Kanamori, V.C. Tsai, L. Rivera, L. Meng, J.P. Ampuero, and J.M. Stock (2012), The 2012 Sumatra great earthquake sequence, Earth Planet. Sci. Lett. 351, 247–257, DOI: 10.1016/j.epsl.2012.07.017.
Feng, L., E.M. Hill, P. Banerjee, I. Hermawan, L.L. Tsang, D.H. Natawidjaja, B.W. Suwargadi, and K Sieh (2015), A unified GPS‐based earthquake catalog for the Sumatran plate boundary between 2002 and 2013, J. Geophys. Res. Solid Earth 20, 5, 3566–3598, DOI: 10.1002/2014JB011661.
Gunawan, E., T. Sagiya, T. Ito, F. Kimata, T. Tabei, Y. Ohta, I. Meilano, H.Z. Abidin, I. Agustan, I. Nurdin, and D. Sugiyanto (2014), A comprehensive model of postseismic deformation of the 2004 Sumatra-Andaman earthquake deduced from GPS observations in northern Sumatra, J. Asian Earth Sci. 88, 218–229, DOI: 10.1016/j.jseaes.2014.03.016.
Gunawan, E., M. Kholil, and I. Meilano (2016a), Splay-fault rupture during the 2014 Mw7. 1 Molucca Sea, Indonesia, earthquake determined from GPS measurements, Phys. Earth Planet. Int. 259, 29–33, DOI: 10.1016/j.pepi. 2016.08.009.
Gunawan, E., I. Meilano, H.Z. Abidin, N.R. Hanifa, and Susilo (2016b), Investigation of the best coseismic fault model of the 2006 Java tsunami earthquake based on mechanisms of postseismic deformation, J. Asian Earth Sci. 17, 64–72, DOI: 10.1016/j.jseaes.2015.12.003.
Gusman, A.R., S. Murotani, K. Satake, M. Heidarzadeh, E. Gunawan, S. Watada, and B. Schurr (2015), Fault slip distribution of the 2014 Iquique, Chile, earthquake estimated from ocean‐wide tsunami waveforms and GPS data, Geophys. Res. Lett. 42, 4, 1053–1060, DOI: 10.1002/2014GL062604.
Hanifa, N.R., T. Sagiya, F. Kimata, J. Efendi, H.Z. Abidin, and I. Meilano (2014), Interplate coupling model off the southwestern coast of Java, Indonesia, based on continuous GPS data in 2008–2010, Earth Planet. Sci. Lett. 401, 159–171, DOI: 10.1016/j.epsl.2014.06.010.
Herring, T.A., R.W. King, and S.C. McClusky (2010a), GAMIT reference manual release 10.4, Report, Massachusetts Institute Technology, Cambridge, USA, 171 pp.
Herring, T.A., R.W. King, and S.C. McClusky (2010b), GLOBK reference manual: global Kalman filter VLBI and GPS analysis program release 10.4, Report, Massachusetts Institute Technology, Cambridge, USA, 95 pp.
Hill, E.M., H. Yue, S. Barbot, T. Lay, P. Tapponnier, I. Hermawan, J. Hubbard, P. Banerjee, L. Feng, D. Natawidjaja, and K. Sieh (2015), The 2012 Mw 8.6 Wharton Basin sequence: A cascade of great earthquakes generated by near‐orthogonal, young, oceanic mantle faults, J. Geophys. Res. Solid Earth 20, 5, 3723–3747, DOI: 10.1002/2014JB011703.
Ito, T., E. Gunawan, F. Kimata, T. Tabei, M. Simons, I. Meilano, I. Agustan, Y. Ohta, I. Nurdin, and D. Sugiyanto (2012), Isolating along‐strike variations in the depth extent of shallow creep and fault locking on the northern Great Sumatran Fault, J. Geophys. Res. Solid Earth 17, B6, B06409, DOI: 10.1029/2011JB008940.
Ito, T., E. Gunawan, F. Kimata, T. Tabei, I. Meilano, I. Agustan, Y. Ohta, N. Ismail, I. Nurdin, and D. Sugiyanto (2016), Co-seismic offsets due to two earthquakes (Mw6.1) along the Sumatran fault system derived from GNSS measurements, Earth Planet. Space 68, 57, DOI: 10.1186/s40623-016-0427-z.
Meilano, I., E. Gunawan, D. Sarsito, K. Prijatna, H.Z. Abidin, and J. Efendi (2015), Preliminary deformation model for National Seismic Hazard map of Indonesia, AIP Conf. Proc. 658, 030003, DOI: 10.1063/1.4915011.
Meng, L., J.P. Ampuero, J. Stock, Z. Duputel, Y. Luo, and V.C. Tsai (2012), Earthquake in a maze: Compressional rupture branching during the 2012 Mw 8.6 Sumatra earthquake, Science 337, 6095, 724–726, DOI: 10.1126/science. 1224030.
Ohkura, T., T. Tabei, F. Kimata, T.C. Bacolcol, Y. Nakamura, A.C. Luis, A. Pelicano, R. Jorgio, M. Tabique, M. Abrahan, E. Jorgio, and E. Gunawan (2015), Plate convergence and block motions in Mindanao Island, Philippine as derived from campaign GPS observations, J. Disaster Res. 0, 1, 59–66, DOI: 10.20965/jdr.2015.p0059.
Okada, Y. (1992), Internal deformation due to shear and tensile faults in a halfspace, Bull. Seismol. Soc. Am. 82, 2, 1018–1040.
Piersanti, A., G. Spada, and R. Sabadini (1997), Global postseismic rebound of a viscoelastic Earth: Theory for finite faults and application to the 1964 Alaska earthquake, J. Geophys. Res. 02, B1, 477–492, DOI: 10.1029/ 96JB01909.
Poisson, B., C. Oliveros, and R. Pedreros (2011), Is there a best source model of the Sumatra 2004 earthquake for simulating the consecutive tsunami?, Geophys. J. Int. 85, 3, 1365–1378, DOI: 10.1111/j.1365-246X.2011.05009.x.
Pollitz, F.F. (1996), Coseismic deformation from earthquake faulting on a layered spherical Earth, Geophys. J. Int. 25, 1, 1–14, DOI: 10.1111/j.1365-246X. 1996.tb06530.x.
Raharja, R., E. Gunawan, I. Meilano, H.Z. Abidin, and J. Efendi (2016), Long aseismic slip duration of the 2006 Java tsunami earthquake based on GPS data, Earthq. Sci., DOI: 10.1007/s11589-016-0167-y.
Rhie, J., D. Dreger, R. Bürgmann, and B. Romanowicz (2007), Slip of the 2004 Sumatra–Andaman earthquake from joint inversion of long-period global seismic waveforms and GPS static offsets, Bull. Seismol. Soc. Am. 97, 1, S115–S127, DOI: 10.1785/0120050620.
Tabei, T., F. Kimata, T. Ito, E. Gunawan, H. Tsutsumi, Y. Ohta, T. Yamashina, Y. Soeda, N. Ismail, I. Nurdin, D. Sugiyanto, and I. Meilano (2015), Geodetic and geomorphic evaluations of earthquake generation potential of the northern Sumatran fault, Indonesia. In: International Association of Geodesy Symposia, Springer, Berlin Heidelberg, DOI: 10.1007/1345_2015_200, 1–8.
Wei, S., D. Helmberger, and J.P. Avouac (2013), Modeling the 2012 Wharton basin earthquakes off‐Sumatra: Complete lithospheric failure, J. Geophys. Res. Solid Earth 18, 7, 3592–3609, DOI: 10.1002/jgrb.50267.
Wessel, P., and W.H.F. Smith (1998), New, improved version of the generic mapping tools released, Eos Trans. AGU 79, 47, 579, DOI: 10.1029/98EO00426.
Yadav, R.K., B. Kundu, K. Gahalaut, J. Catherine, V.K. Gahalaut, A. Ambikapthy, and M.S. Naidu (2013), Coseismic offsets due to the 11 April 2012 Indian Ocean earthquakes (Mw 8.6 and 8.2) derived from GPS measurements, Geophys. Res. Lett. 40, 13, 3389–3393, DOI: 10.1002/grl.50601.
Yue, H., T. Lay, and K.D. Koper (2012), En echelon and orthogonal fault ruptures of the 11 April 2012 great intraplate earthquakes, Nature 490, 7419, 245–249, DOI: 10.1038/nature11492.
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Gunawan, E., Maulida, P., Meilano, I. et al. Analysis of Coseismic Fault Slip Models of the 2012 Indian Ocean Earthquake: Importance of GPS Data for Crustal Deformation Studies. Acta Geophys. 64, 2136–2150 (2016). https://doi.org/10.1515/acgeo-2016-0106
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DOI: https://doi.org/10.1515/acgeo-2016-0106