Release of mineral-bound water prior to subduction tied to shallow seismogenic slip off Sumatra

Andre Hüpers; Marta E. Torres; Satoko Owari; Lisa C. McNeill; Brandon Dugan; Timothy J. Henstock; Kitty L. Milliken; Katerina E. Petronotis; Jan Backman; Sylvain Bourlange; Farid Chemale; Wenhuang Chen; Tobias A. Colson; Marina C.G. Frederik; Gilles Guèrin; Mari Hamahashi; Brian M. House; Tamara N. Jeppson; Sarah Kachovich; Abby R. Kenigsberg; Mebae Kuranaga; Steffen Kutterolf; Freya L. Mitchison; Hideki Mukoyoshi; Nisha Nair; Kevin T. Pickering; Hugo F.A. Pouderoux; Yehua Shan; Insun Song; Paola Vannucchi; Peter J. Vrolijk; Tao Yang; Xixi Zhao

doi:10.1126/science.aal3429

Release of mineral-bound water prior to subduction tied to shallow seismogenic slip off Sumatra

Andre Hüpers, Marta E. Torres, Satoko Owari, Lisa C. McNeill, Brandon Dugan, Timothy J. Henstock, Kitty L. Milliken, Katerina E. Petronotis, Jan Backman, Sylvain Bourlange, Farid Chemale, Wenhuang Chen, Tobias A. Colson, Marina C.G. Frederik, Gilles Guèrin, Mari Hamahashi, Brian M. House, Tamara N. Jeppson, Sarah Kachovich, Abby R. KenigsbergMebae Kuranaga, Steffen Kutterolf, Freya L. Mitchison, Hideki Mukoyoshi, Nisha Nair, Kevin T. Pickering, Hugo F.A. Pouderoux, Yehua Shan, Insun Song, Paola Vannucchi, Peter J. Vrolijk, Tao Yang, Xixi Zhao

School of Earth Sciences

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

46 Citations (Scopus)

Abstract

Plate-boundary fault rupture during the 2004 Sumatra-Andaman subduction earthquake extended closer to the trench than expected, increasing earthquake and tsunami size. International Ocean Discovery Program Expedition 362 sampled incoming sediments offshore northern Sumatra, revealing recent release of fresh water within the deep sediments. Thermal modeling links this freshening to amorphous silica dehydration driven by rapid burial-induced temperature increases in the past 9 million years. Complete dehydration of silicates is expected before plate subduction, contrasting with prevailing models for subduction seismogenesis calling for fluid production during subduction. Shallow slip offshore Sumatra appears driven by diagenetic strengthening of deeply buried fault-forming sediments, contrasting with weakening proposed for the shallow Tohoku-Oki 2011 rupture, but our results are applicable to other thickly sedimented subduction zones including those with limited earthquake records.

Original language	English
Pages (from-to)	841-844
Number of pages	4
Journal	Science
Volume	356
Issue number	6340
DOIs	https://doi.org/10.1126/science.aal3429
Publication status	Published - 26 May 2017

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Hüpers, A., Torres, M. E., Owari, S., McNeill, L. C., Dugan, B., Henstock, T. J., Milliken, K. L., Petronotis, K. E., Backman, J., Bourlange, S., Chemale, F., Chen, W., Colson, T. A., Frederik, M. C. G., Guèrin, G., Hamahashi, M., House, B. M., Jeppson, T. N., Kachovich, S., ... Zhao, X. (2017). Release of mineral-bound water prior to subduction tied to shallow seismogenic slip off Sumatra. Science, 356(6340), 841-844. https://doi.org/10.1126/science.aal3429

@article{b0fd48db831c426db4c3c3811e42626c,

title = "Release of mineral-bound water prior to subduction tied to shallow seismogenic slip off Sumatra",

abstract = "Plate-boundary fault rupture during the 2004 Sumatra-Andaman subduction earthquake extended closer to the trench than expected, increasing earthquake and tsunami size. International Ocean Discovery Program Expedition 362 sampled incoming sediments offshore northern Sumatra, revealing recent release of fresh water within the deep sediments. Thermal modeling links this freshening to amorphous silica dehydration driven by rapid burial-induced temperature increases in the past 9 million years. Complete dehydration of silicates is expected before plate subduction, contrasting with prevailing models for subduction seismogenesis calling for fluid production during subduction. Shallow slip offshore Sumatra appears driven by diagenetic strengthening of deeply buried fault-forming sediments, contrasting with weakening proposed for the shallow Tohoku-Oki 2011 rupture, but our results are applicable to other thickly sedimented subduction zones including those with limited earthquake records.",

author = "Andre H{\"u}pers and Torres, {Marta E.} and Satoko Owari and McNeill, {Lisa C.} and Brandon Dugan and Henstock, {Timothy J.} and Milliken, {Kitty L.} and Petronotis, {Katerina E.} and Jan Backman and Sylvain Bourlange and Farid Chemale and Wenhuang Chen and Colson, {Tobias A.} and Frederik, {Marina C.G.} and Gilles Gu{\`e}rin and Mari Hamahashi and House, {Brian M.} and Jeppson, {Tamara N.} and Sarah Kachovich and Kenigsberg, {Abby R.} and Mebae Kuranaga and Steffen Kutterolf and Mitchison, {Freya L.} and Hideki Mukoyoshi and Nisha Nair and Pickering, {Kevin T.} and Pouderoux, {Hugo F.A.} and Yehua Shan and Insun Song and Paola Vannucchi and Vrolijk, {Peter J.} and Tao Yang and Xixi Zhao",

year = "2017",

month = may,

day = "26",

doi = "10.1126/science.aal3429",

language = "English",

volume = "356",

pages = "841--844",

journal = "Science",

issn = "0036-8075",

publisher = "AMER ASSOC ADVANCEMENT SCIENCE",

number = "6340",

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Hüpers, A, Torres, ME, Owari, S, McNeill, LC, Dugan, B, Henstock, TJ, Milliken, KL, Petronotis, KE, Backman, J, Bourlange, S, Chemale, F, Chen, W, Colson, TA, Frederik, MCG, Guèrin, G, Hamahashi, M, House, BM, Jeppson, TN, Kachovich, S, Kenigsberg, AR, Kuranaga, M, Kutterolf, S, Mitchison, FL, Mukoyoshi, H, Nair, N, Pickering, KT, Pouderoux, HFA, Shan, Y, Song, I, Vannucchi, P, Vrolijk, PJ, Yang, T & Zhao, X 2017, 'Release of mineral-bound water prior to subduction tied to shallow seismogenic slip off Sumatra', Science, vol. 356, no. 6340, pp. 841-844. https://doi.org/10.1126/science.aal3429

TY - JOUR

T1 - Release of mineral-bound water prior to subduction tied to shallow seismogenic slip off Sumatra

AU - Hüpers, Andre

AU - Torres, Marta E.

AU - Owari, Satoko

AU - McNeill, Lisa C.

AU - Dugan, Brandon

AU - Henstock, Timothy J.

AU - Milliken, Kitty L.

AU - Petronotis, Katerina E.

AU - Backman, Jan

AU - Bourlange, Sylvain

AU - Chemale, Farid

AU - Chen, Wenhuang

AU - Colson, Tobias A.

AU - Frederik, Marina C.G.

AU - Guèrin, Gilles

AU - Hamahashi, Mari

AU - House, Brian M.

AU - Jeppson, Tamara N.

AU - Kachovich, Sarah

AU - Kenigsberg, Abby R.

AU - Kuranaga, Mebae

AU - Kutterolf, Steffen

AU - Mitchison, Freya L.

AU - Mukoyoshi, Hideki

AU - Nair, Nisha

AU - Pickering, Kevin T.

AU - Pouderoux, Hugo F.A.

AU - Shan, Yehua

AU - Song, Insun

AU - Vannucchi, Paola

AU - Vrolijk, Peter J.

AU - Yang, Tao

AU - Zhao, Xixi

PY - 2017/5/26

Y1 - 2017/5/26

N2 - Plate-boundary fault rupture during the 2004 Sumatra-Andaman subduction earthquake extended closer to the trench than expected, increasing earthquake and tsunami size. International Ocean Discovery Program Expedition 362 sampled incoming sediments offshore northern Sumatra, revealing recent release of fresh water within the deep sediments. Thermal modeling links this freshening to amorphous silica dehydration driven by rapid burial-induced temperature increases in the past 9 million years. Complete dehydration of silicates is expected before plate subduction, contrasting with prevailing models for subduction seismogenesis calling for fluid production during subduction. Shallow slip offshore Sumatra appears driven by diagenetic strengthening of deeply buried fault-forming sediments, contrasting with weakening proposed for the shallow Tohoku-Oki 2011 rupture, but our results are applicable to other thickly sedimented subduction zones including those with limited earthquake records.

AB - Plate-boundary fault rupture during the 2004 Sumatra-Andaman subduction earthquake extended closer to the trench than expected, increasing earthquake and tsunami size. International Ocean Discovery Program Expedition 362 sampled incoming sediments offshore northern Sumatra, revealing recent release of fresh water within the deep sediments. Thermal modeling links this freshening to amorphous silica dehydration driven by rapid burial-induced temperature increases in the past 9 million years. Complete dehydration of silicates is expected before plate subduction, contrasting with prevailing models for subduction seismogenesis calling for fluid production during subduction. Shallow slip offshore Sumatra appears driven by diagenetic strengthening of deeply buried fault-forming sediments, contrasting with weakening proposed for the shallow Tohoku-Oki 2011 rupture, but our results are applicable to other thickly sedimented subduction zones including those with limited earthquake records.

UR - http://www.scopus.com/inward/record.url?scp=85019704610&partnerID=8YFLogxK

U2 - 10.1126/science.aal3429

DO - 10.1126/science.aal3429

M3 - Article

C2 - 28546210

AN - SCOPUS:85019704610

SN - 0036-8075

VL - 356

SP - 841

EP - 844

JO - Science

JF - Science

IS - 6340

ER -

Release of mineral-bound water prior to subduction tied to shallow seismogenic slip off Sumatra

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