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EOI Program Expeditions and Research Sites

EOI has been leading research expeditions around the world since 1983. Results are published in peer-reviewed journals listed on the publications site and data is available via the appropriate repositories at National Centers for Environmental Information, R2R Program, SESAR and MGDS.

Expedition focus sites:
(click for more info)
  • NE Pacific - Axial Seamount
  • Marianas
  • Lau Basin

  • Other expeditions:
    Upcoming expeditions


    Previous expeditions
    EOI Expeditions
    Expeditions by year-

    E/V Nautilus-Cascadia: Ocean Exploration Trust expedition searching for methane bubble emission sites (5/22/17-6/5/17)


    Axial 2017 Expedition: R/V Revelle (July 13-23) with ROV Jason and AUV Sentry. Pressure measurements of volcanic inflation after the 2015 eruption.

    R/V Falkor-Lau Basin: Studying the Submarine Volcanoes of Tonga (Nov/Dec 2017)

    Seeps and Ecosystems of the Cascadia Margin, E/V Nautilus (June 2016) Cruise Report: high-resolution 22MB | low-resoltuion 10.8MB pdf
    Deepwater Exploration of the Marianas, R/V Okeanos Explorer (April-July)
    Northern Expedition, R/V Western Flyer (July/August)
    R/V Falkor Science Verification Cruise (Nov. 18-24)
    Mariana back-arc, R/V Falkor (Nov. 29-/Dec. 20)
    Kermadec arc-trench, HMNZS Wellington (March 2015)
    Axial Seamount, R/V Thompson (August 2015)
    Southern Colville Ridge-2 (September 2015)
    Mariana back-arc, R/V Falkor (November 2015)
    Maug Volcano, NOAA Ship Hi'ialakai
    Axial Seamount, NOAA Ship Ron Brown
    Mariana Arc, R/V Revelle