Proceedings of the International Ocean Discovery Program
Volume 405
Tracking Tsunamigenic Slip Across the Japan Trench (JTRACK)
Expedition 405 of the D/V Chikyu
from and to Shimizu, Japan
Sites C0019 and C0026
6 September–20 December 2024
Volume authorship
Kodaira, S., Conin, M., Fulton, P., Kirkpatrick, J., Regalla, C., Ujiie, K., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., and the Expedition 405 Scientists
Published by
International Ocean Discovery Program
Publisher’s notes
This publication was prepared by the D/V Chikyu Science Operator, the Institute for Marine-Earth Exploration and Engineering (MarE3), at the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) and the JOIDES Resolution Science Operator (JRSO) at Texas A&M University (TAMU) as an account of work performed under the International Ocean Discovery Program (IODP). Funding for IODP is provided by the following international partners:
- National Science Foundation (NSF), United States
- Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
- European Consortium for Ocean Research Drilling (ECORD)
Any opinions, findings, and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the participating agencies, TAMU, or Texas A&M Research Foundation.
Shipboard-collected data from this expedition are accessible at http://sio7.jamstec.go.jp.
Supplemental data were provided by the authors and may not conform to IODP publication formats.
Some core photographs have been tonally enhanced to better illustrate particular features of interest. High-resolution images are available upon request.
Cover photograph shows Expedition 405 activities on board Chikyu. Copyright JAMSTEC.
Copyright
Except where otherwise noted, this work is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license (https://creativecommons.org/licenses/by/4.0/). Unrestricted use, distribution, and reproduction are permitted, provided the original author and source are credited.
Examples of how to cite this volume or part of this volume are available at http://publications.iodp.org/proceedings/405/405title.html#bib.
ISSN
ISBN
Volume DOI
https://doi.org/10.14379/iodp.proc.405.2025
Publication date
Contents
Expedition reports
Chapters
PDF
Figures
Cited byCore descriptions
Visual core descriptions (VCDs) are presented in PDF files for each site.
Thin sections, smear slides, and/or tabular core description information for each site or hole are presented in tab-separated value (TSV) format or PDF in the CORES directory. The entire set of core images in PDF is available in the IMAGES directory.
Site C0019: Visual core descriptions · Thin sections · Smear slides
Site C0026: Visual core descriptions · Smear slides
Supplementary material
Supplementary material for the Volume 405 expedition reports includes daily reports, structural geology observation sheets, and hand-drawn VCDs in PDF; physical properties data, section summaries, and structure logs in Microsoft Excel format; smear slides in JPG and CZI formats; and thin sections in JPG format. A full list of directories can be found in SUPP_MAT in the volume zip folder or on the Supplementary material for Volume 405 expedition reports web page.
Expedition research results
Data reports
Drilling location maps
A site map showing the drilling locations for this expedition and maps showing the drilling locations of all International Ocean Discovery Program (IODP) expeditions, produced using QGIS (http://www.qgis.org), and all Integrated Ocean Drilling Program, Ocean Drilling Program (ODP), and Deep Sea Drilling Project (DSDP) expeditions, produced using Generic Mapping Tools (GMT) of Paul Wessel and Walter H.F. Smith (https://www.generic-mapping-tools.org), are available in PDF.
- IODP Expedition 405 site map
- IODP map
- Integrated Ocean Drilling Program map (Expeditions 301–348)
- ODP map (Legs 100–210)
- DSDP map (Legs 1–96)
Foreword
The International Ocean Discovery Program (IODP) represents the latest incarnation of almost five decades of scientific ocean drilling excellence and is generally accepted as the most successful international collaboration in the history of the Earth sciences. IODP builds seamlessly on the accomplishments of previous phases: the Deep Sea Drilling Project, Ocean Drilling Program, and Integrated Ocean Drilling Program. The 2013–2023 IODP Science Plan (Illuminating Earth's Past, Present, and Future) defines four themes and thirteen challenges for this decade of scientific ocean drilling that are both of fundamental importance in understanding how the Earth works and of significant relevance to society as the Earth changes, at least in part in response to anthropogenic forcing. This phase of IODP represents an intense level of international collaboration in bringing diverse drilling platforms and strategies to increasing our understanding of climate and ocean change, the deep biosphere and evolution of ecosystems, connections between Earth's deep processes and surface manifestations, and geologically induced hazards on human timeframes.
The Proceedings of the International Ocean Discovery Program presents the scientific and engineering results of IODP drilling projects, expedition by expedition. As in the preceding Integrated Ocean Drilling Program, expeditions in the current IODP phase are conducted by three implementing organizations, each providing a different drilling capability. These are the US Implementing Organization (USIO; through September 2014) and the JOIDES Resolution Science Operator (JRSO; as of October 2014), providing the leased commercial vessel JOIDES Resolution for riserless drilling operations; JAMSTEC's Institute for Marine-Earth Exploration and Engineering (MarE3), providing the drillship Chikyu for riser and occasional riserless operations; and the European Consortium for Ocean Research Drilling (ECORD) Science Operator (ESO), providing "mission-specific" platforms (MSPs) for expeditions that extend the IODP operational range where neither drillship is suitable, for example, in polar environments and in shallow waters. Scheduling decisions for each capability are made by three independent Facility Boards, each of which includes scientists, operators, and platform funding partners: the JOIDES Resolution Facility Board (JRFB), Chikyu IODP Board (CIB), and ECORD Facility Board (EFB). At the beginning of the current IODP, the three Facility Boards agreed to utilize Publication Services at the USIO and now the JRSO for production of all expedition Proceedings volumes and reports.
The current IODP differs from prior scientific ocean drilling programs in that it has neither a central management organization nor commingled funding for program-wide activities. Yet this phase of IODP retains a fundamental integrative structural element: a "bottom-up" evaluation of all proposals for drilling expeditions by a single advisory structure composed of scientists representing all international program partners. International scientists may submit drilling proposals to the Science Support Office; all submitted proposals are then evaluated by a Science Evaluation Panel in the context of the Science Plan.
The current IODP also has an international integrative level for high-level discussion and global consensus-building: the IODP Forum. The Forum is not only charged with assessing program-wide progress toward achieving the current Science Plan, but also with overseeing approaches toward a new bright future of scientific ocean drilling post 2023. At present, IODP involves 22 international funding agencies, including those from the United States, Japan, an Australia/New Zealand consortium (ANZIC), China, India, South Korea, and the 15 members of ECORD (Austria, Canada, Denmark, Finland, France, Germany, Ireland, Italy, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom). The IODP membership represents an unparalleled level of international scientific collaboration; one of the greatest and ongoing strengths of scientific ocean drilling.
Henk Brinkhuis
Chair, IODP Forum
Reviewers for this volume
Pending.
International Ocean Discovery Program
JOIDES Resolution Science Operator
Website: http://iodp.tamu.edu
IODP JRSO
International Ocean Discovery Program
Tel: (979) 845-2673; Fax: (979) 845-4857
Email: information@iodp.tamu.edu
IODP JRSO Curation and Laboratories
IODP Gulf Coast Repository (GCR)
Tel: (979) 845-8490; Fax: (979) 845-1303
Email: curator@iodp.tamu.edu
European Consortium for Ocean Research Drilling, Science Operator (ESO)
Website: http://www.ecord.org
IODP ESO Coordinator: Science, Logistics, and Operations
Tel: (44) 131-667-1000; Fax: (44) 131-668-4140
Email: eso@bgs.ac.uk
IODP ESO Petrophysics
European Petrophysics Consortium
Tel: (44) 116-252-3611; Fax: (44) 116-252-3918
Email: sjd27@leicester.ac.uk
IODP ESO Curation and Laboratories
IODP Bremen Core Repository (BCR)
Center for Marine Environmental Sciences (MARUM)
Tel: (49) 421-218-65560; Fax: (49) 421-218-98-65560
Email: bcr@marum.de
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Website: http://www.jamstec.go.jp/chikyu/e
IODP Japan Science Operator
Institute for Marine-Earth Exploration and Engineering (MarE3)
Japan Agency for Marine-Earth Science and Technology
Yokohama Institute for Earth Sciences
Tel: (81) 45-778-5643; Fax: (81) 45-778-5704
Email: mare3-exp@jamstec.go.jp
IODP Japan Curation and Laboratories
IODP Kochi Institute for Core Sample Research (KCC)
Japan Agency for Marine-Earth Science and Technology
Tel: (81) 88-864-6705; Fax: (81) 88-878-2192
Email: kcc.contact@jamstec.go.jp
Expedition 405 participants*
Expedition 405 scientists
School of Earth and Sustainability
Department of Earth and Atmospheric Sciences
Geological Sciences and Engineering
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Graduate School of Science and Technology
marianne.conin@univ-lorraine.fr
Expedition Project Manager/Staff Scientist
Institute for Marine-Earth Exploration and Engineering (MarE3)
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Expedition Project Manager/Staff Scientist
Institute for Marine-Earth Exploration and Engineering (MarE3)
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Expedition Project Manager/Staff Scientist
Institute for Marine-Earth Exploration and Engineering (MarE3)
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Expedition Project Manager/Staff Scientist
Institute for Marine-Earth Exploration and Engineering (MarE3)
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Institute of Neotectonics and Natural Hazards
p.bellanova@nug.rwth-aachen.de
Department of Earth Planetary and Space Sciences
University of California Los Angeles
Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)
castillo.271@buckeyemail.osu.edu
Institute of Marine Geodynamics
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Logging Scientist/Physical Properties Specialist
mai-linh.doan@univ-grenoble-alpes.fr
Department of Earth and Environmental Sciences (Geochemistry)
Lamont-Doherty Earth Observatory
Earth and Space Sciences Department
Logging Scientist/Physical Properties Specialist
National Institute of Oceanography and Applied Geophysics—OGS
Naruto University of Education
Institute of GeoEnergy Engineering
Physical Properties Specialist/Observatory
Division of Geological and Planetary Sciences
California Institute of Technology
derya.guerer@geow.uni-heidelberg.de
Physical Properties Specialist
Research School of Earth Sciences
The Australian National University
Micropaleontologist (radiolarians)
Graduate School of Science and Engineering
Structural Geologist/Logging Scientist
Kochi Institute for Core Sample Research
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Geological Survey of Japan/AIST
Physical Properties Specialist
MARUM Center for Marine Environmental Sciences
Kochi Institute for Core Sample Research
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Marine Core Research Institute (MaCRI)/Kochi Core Center
Physical Properties Specialist
United State Geological Survey
Logging Scientist/Physical Properties Specialist
Spanish National Research Council (CSIC)
Physical Properties Specialist
Graduate School of Engineering
Research Institute for Marine Geodynamics
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
School of Earth and Sustainability
Physical Properties Specialist
Graduate School of Engineering
hayashi.tameto.6s@kyoto-u.ac.jp
Logging Scientist/Physical Properties Specialist
Geological Survey of Japan, AIST
National Institute of Advanced Industrial Science and Technology
Kochi Institute for Core Sample Research
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Research Institute for Marine Geodynamics
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Institute of GeoEnergy Engineering
Kochi Institute for Core Sample Research
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Logging Scientist/Physical Properties Specialist
Pei.Pei@univ-grenoble-alpes.fr
rebecca.v.robertson@durham.ac.uk
Department of Geological Sciences
University of Colorado Boulder
Department of Engineering and Geology
University of California, Santa Cruz
Logging Scientist/Structural Geologist
University of Texas Institute for Geophysics
Physical Properties Specialist
Civil and Environmental Engineering
University of Wisconsin-Madison
Department of Earth and Planetary Sciences
University of California Davis
Graduate School of Integrated Arts and Sciences, Applied Science
Atmosphere and Ocean Research Institute
MARUM Center for Marine Environmental Sciences
Logging Staff Scientists
Institute for Marine-Earth Exploration and Engineering (MarE3)
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Outreach
Piedmont Virginia Community College
The Australian National University
The National Museum of Emerging Science and Innovation
Office of Science Communication
Miraikan - The National Museum of Emerging Science and innovation
Videographers
*Affiliations at time of expedition, except where updated by participants.
Operational and technical staff
Operation Superintendents (JAMSTEC)
Drilling Engineers (JAMSTEC)
Operation Geologists (JAMSTEC)
Technical Engineers (JAMSTEC)
Captains (Mantle Quest Japan)
Offshore Installation Managers (Mantle Quest Japan)
Laboratory Officers (Marine Works Japan)
Assistant Lab Officers (Marine Works Japan)
Curators (Marine Works Japan)
Laboratory Technicians (Marine Works Japan)
Publications Specialists (Marine Works Japan)
IODP Publication Services staff*
Manager of Publication Services
Expedition-related bibliography*
IODP publications
Scientific Prospectus
Kodaira, S., Conin, M., Fulton, P., Kirkpatrick, J., Regalla, C., Ujiie, K., Okutsu, N., Maeda, L., Toczko, S., and Eguchi, N., 2023. Expedition 405 Scientific Prospectus: Tracking Tsunamigenic Slip Across the Japan Trench (JTRACK). International Ocean Discovery Program. https://doi.org/10.14379/iodp.sp.405.2023
Kodaira, S., Conin, M., Fulton, P., Kirkpatrick, J., Regalla, C., Ujiie, K., Okutsu, N., Maeda, L., Toczko, S., and Eguchi, N., 2024. Expedition 405 Scientific Prospectus Addendum: Tracking Tsunamigenic Slip Across the Japan Trench (JTRACK). International Ocean Discovery Program. https://doi.org/10.14379/iodp.sp.405add.2024
Preliminary Report
Kirkpatrick, J., Regalla, C., Conin, M., Fulton, P., Ujiie, K., Kodaira, S., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., and the Expedition 405 Scientists, 2025. Expedition 405 Preliminary Report: Tracking Tsunamigenic Slip Across the Japan Trench (JTRACK). International Ocean Discovery Program. https://doi.org/10.14379/iodp.pr.405.2025
Proceedings volume
Kodaira, S., Conin, M., Fulton, P., Kirkpatrick, J., Regalla, C., Ujiie, K., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., and the Expedition 405 Scientists, 2025. Tracking Tsunamigenic Slip Across the Japan Trench (JTRACK). Proceedings of the International Ocean Discovery Program, 405: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.405.2025
Expedition reports
Kirkpatrick, J., Regalla, C., Conin, M., Ujiie, K., Fulton, P., Kodaira, S., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., Bellanova, P., Brown, C., Brunet, M., Castillo, M., Chang, Y.-C., Doan, M.-L., Everard, J., Fintel, A., Ford, J., Fukuchi, R., Gough, A., Guo, H., Gürer, D., Hackney, R., Hagino, M., Hamada, Y., Hosono, H., Ijiri, A., Ikari, M., Ishikawa, T., Iwai, M., Jeppson, T., Jurado, M.-J., Kamiya, N., Kanamatsu, T., LaPlante, A., Lin, W., Miyakawa, A., Morono, Y., Nakamura, Y., Nicholson, U., Okuda, H., Pei, P., Pizer, C., Rasbury, T., Robertson, R.V.M., Ross, C., Satolli, S., Savage, H., Schaible, K., Shreedharan, S., Sone, H., Sun, C., Turel, C., Uchida, T., Yamaguchi, A., Yamamoto, Y., Yoshimoto, T., Zhang, J., Wspanialy, A., Le Ber, E., Rydzy, M.B., Bentley, C., Cooper, S., Grant, W., Kurata, Y., Letexier, D., Miura, N., Pincus, M., Schuba, N., and Smith, L., 2025. Expedition 405 summary. In Kodaira, S., Conin, M., Fulton, P., Kirkpatrick, J., Regalla, C., Ujiie, K., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., and the Expedition 405 Scientists, Tracking Tsunamigenic Slip Across the Japan Trench (JTRACK). Proceedings of the International Ocean Discovery Program, 405: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.405.101.2025
Kirkpatrick, J., Fulton, P., Ujiie, K., Conin, M., Regalla, C., Kodaira, S., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., Bellanova, P., Brown, C., Brunet, M., Castillo, M., Chang, Y.-C., Doan, M.-L., Everard, J., Fintel, A., Ford, J., Fukuchi, R., Gough, A., Guo, H., Gürer, D., Hackney, R., Hagino, M., Hamada, Y., Hosono, H., Ijiri, A., Ikari, M., Ishikawa, T., Iwai, M., Jeppson, T., Jurado, M.-J., Kamiya, N., Kanamatsu, T., LaPlante, A., Lin, W., Miyakawa, A., Morono, Y., Nakamura, Y., Nicholson, U., Okuda, H., Pei, P., Pizer, C., Rasbury, T., Robertson, R.V.M., Ross, C., Satolli, S., Savage, H., Schaible, K., Shreedharan, S., Sone, H., Sun, C., Turel, C., Uchida, T., Yamaguchi, A., Yamamoto, Y., Yoshimoto, T., Zhang, J., Wspanialy, A., Le Ber, E., Rydzy, M.B., and Schuba, N., 2025. Expedition 405 methods. In Kodaira, S., Conin, M., Fulton, P., Kirkpatrick, J., Regalla, C., Ujiie, K., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., and the Expedition 405 Scientists, Tracking Tsunamigenic Slip Across the Japan Trench (JTRACK). Proceedings of the International Ocean Discovery Program, 405: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.405.102.2025
Regalla, C., Ujiie, K., Fulton, P., Kirkpatrick, J., Conin, M., Kodaira, S., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., Bellanova, P., Brown, C., Brunet, M., Castillo, M., Chang, Y.-C., Doan, M.-L., Everard, J., Fintel, A., Ford, J., Fukuchi, R., Gough, A., Guo, H., Gürer, D., Hackney, R., Hagino, M., Hamada, Y., Hosono, H., Ijiri, A., Ikari, M., Ishikawa, T., Iwai, M., Jeppson, T., Jurado, M.-J., Kamiya, N., Kanamatsu, T., LaPlante, A., Lin, W., Miyakawa, A., Morono, Y., Nakamura, Y., Nicholson, U., Okuda, H., Pei, P., Pizer, C., Rasbury, T., Robertson, R.V.M., Ross, C., Satolli, S., Savage, H., Schaible, K., Shreedharan, S., Sone, H., Sun, C., Turel, C., Uchida, T., Yamaguchi, A., Yamamoto, Y., Yoshimoto, T., Zhang, J., Wspanialy, A., Le Ber, E., Rydzy, M.B., and Schuba, N., 2025. Site C0019. In Kodaira, S., Conin, M., Fulton, P., Kirkpatrick, J., Regalla, C., Ujiie, K., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., and the Expedition 405 Scientists, Tracking Tsunamigenic Slip Across the Japan Trench (JTRACK). Proceedings of the International Ocean Discovery Program, 405: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.405.103.2025
Conin, M., Kirkpatrick, J., Regalla, C., Ujiie, K., Fulton, P., Kodaira, S., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., Bellanova, P., Brown, C., Brunet, M., Castillo, M., Chang, Y.-C., Doan, M.-L., Everard, J., Fintel, A., Ford, J., Fukuchi, R., Gough, A., Guo, H., Gürer, D., Hackney, R., Hagino, M., Hamada, Y., Hosono, H., Ijiri, A., Ikari, M., Ishikawa, T., Iwai, M., Jeppson, T., Jurado, M.-J., Kamiya, N., Kanamatsu, T., LaPlante, A., Lin, W., Miyakawa, A., Morono, Y., Nakamura, Y., Nicholson, U., Okuda, H., Pei, P., Pizer, C., Rasbury, T., Robertson, R.V.M., Ross, C., Satolli, S., Savage, H., Schaible, K., Shreedharan, S., Sone, H., Sun, C., Turel, C., Uchida, T., Yamaguchi, A., Yamamoto, Y., Yoshimoto, T., Zhang, J., Wspanialy, A., Le Ber, E., Rydzy, M.B., and Schuba, N., 2025. Site C0026. In Kodaira, S., Conin, M., Fulton, P., Kirkpatrick, J., Regalla, C., Ujiie, K., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., and the Expedition 405 Scientists, Tracking Tsunamigenic Slip Across the Japan Trench (JTRACK). Proceedings of the International Ocean Discovery Program, 405: College Station, TX (International Ocean Discovery Program). https://doi.org/10.14379/iodp.proc.405.104.2025
Supplementary material
Kodaira, S., Conin, M., Fulton, P., Kirkpatrick, J., Regalla, C., Ujiie, K., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., and the Expedition 405 Scientists, 2025. Supplementary material, https://doi.org/10.14379/iodp.proc.405supp.2025. In Kodaira, S., Conin, M., Fulton, P., Kirkpatrick, J., Regalla, C., Ujiie, K., Okutsu, N., Maeda, L., Toczko, S., Eguchi, N., and the Expedition 405 Scientists, Tracking Tsunamigenic Slip Across the Japan Trench (JTRACK). Proceedings of the International Ocean Discovery Program, 405: College Station, TX (International Ocean Discovery Program).
Expedition research results
Pending.
Journals/Books
Pending.
Conferences
Pending.
*The Expedition-related bibliography is continually updated online. Please send updates to PubCrd@iodp.tamu.edu.
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