Distribution of stress state in the Nankai subduction zone, southwest Japan and a comparison with Japan Trench

Weiren Lin, Timothy B. Byrne, Masataka Kinoshita, Lisa C. McNeill, Chandong Chang, Jonathan C. Lewis, Yuzuru Yamamoto, Demian Saffer, J. Casey Moore, Hung Yu Wu, Takeshi Tsuji, Yasuhiro Yamada, Marianne Conin, Saneatsu Saito, Takatoshi Ito, Harold J. Tobin, Gaku Kimura, Kyuichi Kanagawa, Juichiro Ashi, Michael B. Underwood & 1 others Toshiya Kanamatsu

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

To better understand the distribution of three dimensional stress states in the Nankai subduction zone, southwest Japan, we review various stress-related investigations carried out in the first and second stage expeditions of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) by the Integrated Ocean Drilling Program (IODP) and compile the stress data. Overall, the maximum principal stress σ1 in the shallower levels (<~1 km) is vertical from near the center of forearc basin to near the trench and; the maximum horizontal stress SHmax (interpreted to be the intermediate principal stress σ2) is generally parallel to the plate convergence vector. The exception to this generalization occurs along the shelf edge of the Nankai margin where SHmax is along strike rather than parallel to the plate convergence vector. Reorientation of the principal stresses at deeper levels (e.g., >~ 1 km below seafloor or in underlying accretionary prism) with σ1 becoming horizontal is also suggested at all deeper drilling sites. We also make a comparison of the stress state in the hanging wall of the frontal plate-interface between Site C0006 in the Nankai and Site C0019 in the Japan Trench subduction zone drilled after the 2011 Mw 9.0 Tohoku-Oki earthquake. In the Japan Trench, a comparison between stress state before and after the 2011 mega-earthquake shows that the stress changed from compression before the earthquake to extension after the earthquake. As a result of the comparison between the Nankai Trough and Japan Trench, a similar current stress state with trench parallel extension was recognized at both C0006 and C0019 sites. Hypothetically, this may indicate that in Nankai Trough it is still in an early stage of the interseismic cycle of a great earthquake which occurs on the décollement and propagates to the toe (around site C0006).

Original languageEnglish (US)
Pages (from-to)120-130
Number of pages11
JournalTectonophysics
Volume692
DOIs
StatePublished - Dec 5 2016

Fingerprint

subduction zone
trench
Japan
earthquakes
earthquake
troughs
trough
drilling
deep drilling
expeditions
accretionary prism
hanging wall
distribution
comparison
Ocean Drilling Program
prisms
seafloor
compression
oceans
cycles

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth-Surface Processes

Cite this

Lin, W., Byrne, T. B., Kinoshita, M., McNeill, L. C., Chang, C., Lewis, J. C., ... Kanamatsu, T. (2016). Distribution of stress state in the Nankai subduction zone, southwest Japan and a comparison with Japan Trench. Tectonophysics, 692, 120-130. https://doi.org/10.1016/j.tecto.2015.05.008
Lin, Weiren ; Byrne, Timothy B. ; Kinoshita, Masataka ; McNeill, Lisa C. ; Chang, Chandong ; Lewis, Jonathan C. ; Yamamoto, Yuzuru ; Saffer, Demian ; Moore, J. Casey ; Wu, Hung Yu ; Tsuji, Takeshi ; Yamada, Yasuhiro ; Conin, Marianne ; Saito, Saneatsu ; Ito, Takatoshi ; Tobin, Harold J. ; Kimura, Gaku ; Kanagawa, Kyuichi ; Ashi, Juichiro ; Underwood, Michael B. ; Kanamatsu, Toshiya. / Distribution of stress state in the Nankai subduction zone, southwest Japan and a comparison with Japan Trench. In: Tectonophysics. 2016 ; Vol. 692. pp. 120-130.
@article{2426340858a34fdd984535a138d7bc7a,
title = "Distribution of stress state in the Nankai subduction zone, southwest Japan and a comparison with Japan Trench",
abstract = "To better understand the distribution of three dimensional stress states in the Nankai subduction zone, southwest Japan, we review various stress-related investigations carried out in the first and second stage expeditions of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) by the Integrated Ocean Drilling Program (IODP) and compile the stress data. Overall, the maximum principal stress σ1 in the shallower levels (<~1 km) is vertical from near the center of forearc basin to near the trench and; the maximum horizontal stress SHmax (interpreted to be the intermediate principal stress σ2) is generally parallel to the plate convergence vector. The exception to this generalization occurs along the shelf edge of the Nankai margin where SHmax is along strike rather than parallel to the plate convergence vector. Reorientation of the principal stresses at deeper levels (e.g., >~ 1 km below seafloor or in underlying accretionary prism) with σ1 becoming horizontal is also suggested at all deeper drilling sites. We also make a comparison of the stress state in the hanging wall of the frontal plate-interface between Site C0006 in the Nankai and Site C0019 in the Japan Trench subduction zone drilled after the 2011 Mw 9.0 Tohoku-Oki earthquake. In the Japan Trench, a comparison between stress state before and after the 2011 mega-earthquake shows that the stress changed from compression before the earthquake to extension after the earthquake. As a result of the comparison between the Nankai Trough and Japan Trench, a similar current stress state with trench parallel extension was recognized at both C0006 and C0019 sites. Hypothetically, this may indicate that in Nankai Trough it is still in an early stage of the interseismic cycle of a great earthquake which occurs on the d{\'e}collement and propagates to the toe (around site C0006).",
author = "Weiren Lin and Byrne, {Timothy B.} and Masataka Kinoshita and McNeill, {Lisa C.} and Chandong Chang and Lewis, {Jonathan C.} and Yuzuru Yamamoto and Demian Saffer and Moore, {J. Casey} and Wu, {Hung Yu} and Takeshi Tsuji and Yasuhiro Yamada and Marianne Conin and Saneatsu Saito and Takatoshi Ito and Tobin, {Harold J.} and Gaku Kimura and Kyuichi Kanagawa and Juichiro Ashi and Underwood, {Michael B.} and Toshiya Kanamatsu",
year = "2016",
month = "12",
day = "5",
doi = "10.1016/j.tecto.2015.05.008",
language = "English (US)",
volume = "692",
pages = "120--130",
journal = "Tectonophysics",
issn = "0040-1951",
publisher = "Elsevier",

}

Lin, W, Byrne, TB, Kinoshita, M, McNeill, LC, Chang, C, Lewis, JC, Yamamoto, Y, Saffer, D, Moore, JC, Wu, HY, Tsuji, T, Yamada, Y, Conin, M, Saito, S, Ito, T, Tobin, HJ, Kimura, G, Kanagawa, K, Ashi, J, Underwood, MB & Kanamatsu, T 2016, 'Distribution of stress state in the Nankai subduction zone, southwest Japan and a comparison with Japan Trench', Tectonophysics, vol. 692, pp. 120-130. https://doi.org/10.1016/j.tecto.2015.05.008

Distribution of stress state in the Nankai subduction zone, southwest Japan and a comparison with Japan Trench. / Lin, Weiren; Byrne, Timothy B.; Kinoshita, Masataka; McNeill, Lisa C.; Chang, Chandong; Lewis, Jonathan C.; Yamamoto, Yuzuru; Saffer, Demian; Moore, J. Casey; Wu, Hung Yu; Tsuji, Takeshi; Yamada, Yasuhiro; Conin, Marianne; Saito, Saneatsu; Ito, Takatoshi; Tobin, Harold J.; Kimura, Gaku; Kanagawa, Kyuichi; Ashi, Juichiro; Underwood, Michael B.; Kanamatsu, Toshiya.

In: Tectonophysics, Vol. 692, 05.12.2016, p. 120-130.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Distribution of stress state in the Nankai subduction zone, southwest Japan and a comparison with Japan Trench

AU - Lin, Weiren

AU - Byrne, Timothy B.

AU - Kinoshita, Masataka

AU - McNeill, Lisa C.

AU - Chang, Chandong

AU - Lewis, Jonathan C.

AU - Yamamoto, Yuzuru

AU - Saffer, Demian

AU - Moore, J. Casey

AU - Wu, Hung Yu

AU - Tsuji, Takeshi

AU - Yamada, Yasuhiro

AU - Conin, Marianne

AU - Saito, Saneatsu

AU - Ito, Takatoshi

AU - Tobin, Harold J.

AU - Kimura, Gaku

AU - Kanagawa, Kyuichi

AU - Ashi, Juichiro

AU - Underwood, Michael B.

AU - Kanamatsu, Toshiya

PY - 2016/12/5

Y1 - 2016/12/5

N2 - To better understand the distribution of three dimensional stress states in the Nankai subduction zone, southwest Japan, we review various stress-related investigations carried out in the first and second stage expeditions of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) by the Integrated Ocean Drilling Program (IODP) and compile the stress data. Overall, the maximum principal stress σ1 in the shallower levels (<~1 km) is vertical from near the center of forearc basin to near the trench and; the maximum horizontal stress SHmax (interpreted to be the intermediate principal stress σ2) is generally parallel to the plate convergence vector. The exception to this generalization occurs along the shelf edge of the Nankai margin where SHmax is along strike rather than parallel to the plate convergence vector. Reorientation of the principal stresses at deeper levels (e.g., >~ 1 km below seafloor or in underlying accretionary prism) with σ1 becoming horizontal is also suggested at all deeper drilling sites. We also make a comparison of the stress state in the hanging wall of the frontal plate-interface between Site C0006 in the Nankai and Site C0019 in the Japan Trench subduction zone drilled after the 2011 Mw 9.0 Tohoku-Oki earthquake. In the Japan Trench, a comparison between stress state before and after the 2011 mega-earthquake shows that the stress changed from compression before the earthquake to extension after the earthquake. As a result of the comparison between the Nankai Trough and Japan Trench, a similar current stress state with trench parallel extension was recognized at both C0006 and C0019 sites. Hypothetically, this may indicate that in Nankai Trough it is still in an early stage of the interseismic cycle of a great earthquake which occurs on the décollement and propagates to the toe (around site C0006).

AB - To better understand the distribution of three dimensional stress states in the Nankai subduction zone, southwest Japan, we review various stress-related investigations carried out in the first and second stage expeditions of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) by the Integrated Ocean Drilling Program (IODP) and compile the stress data. Overall, the maximum principal stress σ1 in the shallower levels (<~1 km) is vertical from near the center of forearc basin to near the trench and; the maximum horizontal stress SHmax (interpreted to be the intermediate principal stress σ2) is generally parallel to the plate convergence vector. The exception to this generalization occurs along the shelf edge of the Nankai margin where SHmax is along strike rather than parallel to the plate convergence vector. Reorientation of the principal stresses at deeper levels (e.g., >~ 1 km below seafloor or in underlying accretionary prism) with σ1 becoming horizontal is also suggested at all deeper drilling sites. We also make a comparison of the stress state in the hanging wall of the frontal plate-interface between Site C0006 in the Nankai and Site C0019 in the Japan Trench subduction zone drilled after the 2011 Mw 9.0 Tohoku-Oki earthquake. In the Japan Trench, a comparison between stress state before and after the 2011 mega-earthquake shows that the stress changed from compression before the earthquake to extension after the earthquake. As a result of the comparison between the Nankai Trough and Japan Trench, a similar current stress state with trench parallel extension was recognized at both C0006 and C0019 sites. Hypothetically, this may indicate that in Nankai Trough it is still in an early stage of the interseismic cycle of a great earthquake which occurs on the décollement and propagates to the toe (around site C0006).

UR - http://www.scopus.com/inward/record.url?scp=84930412210&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930412210&partnerID=8YFLogxK

U2 - 10.1016/j.tecto.2015.05.008

DO - 10.1016/j.tecto.2015.05.008

M3 - Article

VL - 692

SP - 120

EP - 130

JO - Tectonophysics

JF - Tectonophysics

SN - 0040-1951

ER -