North Island Hikurangi Subduction Zone
Collaboration with GNS, Victoria Univ. Wellington, Univ. Tokyo – ERI

(1) NSF Marine Geology & Geophysics: Seismogenic zone processes of Hikurangi subduction, New Zealand: illumination using the SAHKE seismic project (2011-2014)

(2) NSF Integrated Earth Systems: Controls on along-strike variations in locked and creeping megathrust behavior at the Hikurangi convergent margin (SHIRE) (2016-2022)

Seismic imaging of subduction interface.
Comparisons to Japan subduction systems.

 
Southern Hikurangi subduction zone (SAHKE project)

  • Stern, T.A., S.H. Henrys, D.A. Okaya, M.K. Savage, H. Sato, R. Sutherland, T. Iwasaki, and J. Louie, 2015, A seismic reflection image for the base of a tectonic plate, Nature, 518, 85-88, doi:10.1038/nature14146.
  • Kurashimo, E., S. Henrys, H. Sato, T. Iwasaki, D. Okaya, R. Sutherland, T. Stern, T. Iidaka, T. Ishiyama, and M. Savage, 2015, SAHKE seismic-scatter imaging of subduction beneath Wellington, North Island, New Zealand, Geophys. Res. Letts., 42, doi:10.1002/2015GL063230.
  • Henrys, S., A. Wech, R. Sutherland, T. Stern, M. Savage, H. Sato, K. Mochizuki, T. Iwasaki, D. Okaya S. Seward, B. Toozer, J. Townend, C. Hall, E. Kurashimo, T. Iidaka, and T. Ishiyama, 2013 SAHKE geophysical transect reveals crustal and subduction zone structure at the southern Hikurangi margin, New Zealand, Geochem. Geophys. Geosyst., 14 , doi:10.1002/ggge.20136.
  • Seward, A., S. Henrys, D. Okaya, T. Stern, M. Savage, H. Sato, T. Iwasaki, R. Sutherland, M. Henderson, 2011, Seismic Array Hikurangi Experiment II (SAHKE II): onshore active source acquisition report, GNS Science Report #2011/50.

 

Northern Hikurangi subduction zone (SHIRE project)

  • Gase, A.C., N.L. Bangs, H.J.A. Van Avendonk, D. Bassett, S.A. Henrys, R. Arai, G. Fujie, P. Barnes, S. Kodaira, D.H.N. Barker, and D. Okaya, Volcanic crustal structure of the western Hikurangi Plateau from marine seismic reflection imaging, Geosphere, submitted.
  • Luckie, T.W., D.A. Okaya, K.M. Jacobs, S.A. Henrys, A.C. Gase, D. Bassett, H.J.A. Van Avendonk, M. White, D.H.N. Barker, N.L. Bangs, S. Kodaira, R. Arai, G. Fujie, and Y. Yamamoto, Geophysical transect reveals seismic P-wave velocity structure of the northern Hikurangi margin, New Zealand, J. Geophys. Res. Solid Earth, submitted.
  • Bassett, D., G. Fujie, S. Kodaira, R. Arai, Y. Yamamoto, S. Henrys, D. Barker, A. Gase, H. van Avendonk, N. Bangs, H. Seebeck, B. Tozer K. Jacobs, T. Luckie, D. Okaya, and K. Mochizuki, Heterogeneous crustal structure of the Hikurangi Plateau revealed by SHIRE seismic data: Origin and implications for plate boundary tectonics, Geophys. Res. Letts., 50, e2023GL105674. doi:10.1029/2023GL105674.
  • Bassett., D., A. Arnulf, S. Henrys, D. Barker, H. van Avendonk, N. Bangs, S. Kodaira, H. Seebec, L. Wallace, A. Gase, T. Luckie, K. Jacobs, B. Tozer, R. Arai, D. Okaya, K. Mochizuki, G. Fujie, and Y. Yamamoto, 2022, Crustal structure of the Hikurangi margin from SHIRE seismic data and the relationship between forearc structure and shallow megathrust slip behavior. Geophys. Res. Letts., 49, e2021GL096960. doi:10.1029/2021GL096960.
  • Gase, A.C., H.J.A. Van Avendonk, N.L. Bangs, D. Bassett, S.A. Henrys, D.H.N. Barker, S. Kodaira, K.M. Jacobs, T.W. Luckie, D.A. Okaya, G. Fujie, Y. Yamamoto, A.F. Arnulf, R. Arai, 2021, Crustal structure of the northern Hikurangi margin, New Zealand: variable accretion and overthrusting plate strength influenced by rough subduction. J. Geophys. Res.: Solid Earth, 126, e2020JB021176, doi: 10.1029/2020JB021176.
  • Henrys, S., D. Eberhart-Phillips, D. Bassett, R. Sutherland, D. Okaya, M. Savage, D. Evanzia, T. Stern, H. Sato, K. Mochizuki, T. Iwasaki, E. Kurashimo, A. Seward, and A. Wech, 2020, Upper-plate heterogeneity along the southern Hikurangi Margin, New Zealand, Geophys. Res. Letts., 47, e2019GL085511, doi:10.1029/2019GL085511.
  • Jacobs K, S.A. Henrys, D. Okaya, H. Van Avendonk, J. Black, D.H.N. Barker, S.C. Karalliyadda, E. Kurashimo, W.R. Stratford, M. Savage, R. Sullivan, Z.R. Bruce, L. Hughes, and the SHIRE Team, 2020, Seismogenesis Hikurangi Integrated Research Experiment (SHIRE): Onshore seismic acquisition field report. GNS Science Report 2019/19, doi: 10.21420/PEQZ-BR17.
  • Gase, A.C., H. Van Avendonk, N. Bangs, D. Barker, S. Henrys, D. Okaya, S. Kodaira, K. Jacobs, T. Luckie, D. Bassett, G. Fujie, A. Arnulf, and Y. Yamamoto, 2019, Seismic evidence of magmatic rifting in the northern Taupo Volcanic Zone, Geophys. Res. Letts., 46, 12949-12957, doi:10.1029/ 2019GL085269.
  • Bangs, N., H. Van Avendonk, L. Wallace, W. Proctor, J. Pilarczyk, J. Marshall, D. Saffer and D. Okaya (2018). DOI: 10.1594/IEDA/324462.