2006
DOI: 10.1126/science.1122602
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Deformation and Slip Along the Sunda Megathrust in the Great 2005 Nias-Simeulue Earthquake

Abstract: Seismic rupture produced spectacular tectonic deformation above a 400-kilometer strip of the Sunda megathrust, offshore northern Sumatra, in March 2005. Measurements from coral microatolls and Global Positioning System stations reveal trench-parallel belts of uplift up to 3 meters high on the outer-arc islands above the rupture and a 1-meter-deep subsidence trough farther from the trench. Surface deformation reflects more than 11 meters of fault slip under the islands and a pronounced lessening of slip trenchw… Show more

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Cited by 300 publications
(334 citation statements)
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References 23 publications
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“…In this respect, the coast near Bengkulu resembles the west coast of Aceh, as devastated in 2004 by the impact of waves that were not affected by the presence of offshore islands. By contrast, the Padang coast is analogous to the coast of North Sumatra, which suffered far less devastating tsunami inundation in 2005, ascribable at least in part to the presence of the large island of Nias between itself and the region of maximum seafloor uplift (10,24,25). Supporting information (SI) Movies 1-10 are related to tsunami wave propagation and inundation for a subset of the cases described here.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…In this respect, the coast near Bengkulu resembles the west coast of Aceh, as devastated in 2004 by the impact of waves that were not affected by the presence of offshore islands. By contrast, the Padang coast is analogous to the coast of North Sumatra, which suffered far less devastating tsunami inundation in 2005, ascribable at least in part to the presence of the large island of Nias between itself and the region of maximum seafloor uplift (10,24,25). Supporting information (SI) Movies 1-10 are related to tsunami wave propagation and inundation for a subset of the cases described here.…”
Section: Resultsmentioning
confidence: 99%
“…2 C and D), the slip on the megathrust is uniformly 10 m, just under the maximum values that occurred during the 2005 Nias-Simeulue earthquake (10). In scenarios 3 and 4 ( Fig.…”
Section: Megathrust Modelsmentioning
confidence: 99%
“…Further evidence supporting shallow slip offshore North Sumatra includes aftershock sequences within the outer prism (e.g., Peiscek et al, 2010;Engdahl et al, 2007;Tilmann et al, 2010) and small-scale fault scarps offsetting the seafloor generated by active thrust faults close to the deformation front that may be generated coseismically (Henstock et al, 2006). Slip during the 2005 Sumatra rupture was different: it was concentrated beneath the forearc islands and not beneath the seaward-tapered prism or the forearc basin (e.g., Briggs et al, 2006). Other margins have experienced ruptures beneath the forearc high similar to the 2005 rupture (e.g., Kamchatka 1952 andChile 2010).…”
Section: Iodp Proceedingsmentioning
confidence: 99%
“…The plateau and its width contrast with the wedge structure of many other accretionary margins. The December 2004 earthquake was followed by the Mw 8.7 Nias earthquake in March 2005 (e.g., Briggs et al, 2006) and by others in 2007 (e.g., Konca et al, 2008) and 2010 (Newman et al, 2011) on the margin. These earthquakes all ruptured megathrust sections between the Indo-Australian and Burma-Sunda plates (Figures F1, F2).…”
Section: Introductionmentioning
confidence: 99%
“…The paper related to the examination of the amount of carbon released from peat and forest fires in 455 Indonesia in 1997 has the highest citation of 1156 by Page et al (2002), published in Nature. The majority of the paper discussed major hazards from earthquake in Sumatera (Briggs et al, 2006;Hsu et al, 2006;Ishii et al, 2005;Konca et al, 2008), and the rest review the impacts of Toba (Rampino and Self, 1992) and Merapi volcanic eruption (Voight et al, 2000).…”
Section: Overallmentioning
confidence: 99%