dc.contributor.authorHsu, Ya-Ju
dc.contributor.authorSimons, Mark
dc.contributor.authorAvouac, Jean-Philippe
dc.contributor.authorGaletzka, John
dc.contributor.authorSieh, Kerry
dc.contributor.authorChlieh, Mohamed
dc.contributor.authorNatawidjaja, Danny H.
dc.contributor.authorPrawirodirdjo, Linette
dc.contributor.authorBock, Yehuda
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_US
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_US
dc.rights© 2006 American Association for the Advancement of Science.en_US
dc.subjectDRNTU::Science::Geology::Volcanoes and earthquakes
dc.titleFrictional afterslip following the 2005 Nias-Simeulue earthquake, Sumatraen_US
dc.typeJournal Article

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