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dc.contributor.authorHsu, Ya-Juen
dc.contributor.authorSimons, Marken
dc.contributor.authorAvouac, Jean-Philippeen
dc.contributor.authorGaletzka, Johnen
dc.contributor.authorSieh, Kerryen
dc.contributor.authorChlieh, Mohameden
dc.contributor.authorNatawidjaja, Danny H.en
dc.contributor.authorPrawirodirdjo, Linetteen
dc.contributor.authorBock, Yehudaen
dc.identifier.citationHsu, Y. J., Simons, M., Avouac, J. P., Galetzka, J., Sieh, K., Chlieh, M., et al. (2006). Frictional afterslip following the 2005 Nias-Simeulue earthquake, Sumatra. Science, 312(5782), 1921-1926.en
dc.description.abstractContinuously recording Global Positioning System stations near the 28 March 2005 rupture of the Sunda megathrust [moment magnitude (Mw) 8.7] show that the earthquake triggered aseismic frictional afterslip on the subduction megathrust, with a major fraction of this slip in the up-dip direction from the main rupture. Eleven months after the main shock, afterslip continues at rates several times the average interseismic rate, resulting in deformation equivalent to at least a Mw 8.2 earthquake. In general, along-strike variations in frictional behavior appear to persist over multiple earthquake cycles. Aftershocks cluster along the boundary between the region of coseismic slip and the up-dip creeping zone. We observe that the cumulative number of aftershocks increases linearly with postseismic displacements; this finding suggests that the temporal evolution of aftershocks is governed by afterslip.en
dc.rights© 2006 American Association for the Advancement of Science.en
dc.subjectDRNTU::Science::Geology::Volcanoes and earthquakesen
dc.titleFrictional afterslip following the 2005 Nias-Simeulue earthquake, Sumatraen
dc.typeJournal Articleen
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