A trusted data repository offering
free public access to a curated collection of marine geophysical
data and metadata related to the formation and evolution of the seafloor and sub-seafloor.
Explore our data holdings to discover research data from around the world.
Academic Seismic Portal
The primary data resource for
field and processed data from active source marine seismic experiments (multi-channel, single-channel, chirp subbottom, sonobuoy)
acquired by the U.S. academic community.
Submersible Data
Submersibles provide important high-resolution geophysical data sets as well as bottom samples, photos and video that
are important for seafloor characterization and ground-truth. Data have been acquired by the National Deep Submergence
Facility (NDSF), the Schmidt Ocean Institute (SOI), and the Monterey Bay Aquarium Research Institute (MBARI).
Related Resources
Data systems and tools that were formerly operated as part of IEDA continue to offer complementary data products and services, including:
Recent Data Contributions
LIS4:BenthicGeology Image Data: LIS phase 4 sediment core images
LIS4:BenthicGeology Data: LIS phase 4 sediment core location and acquisition information (Excel format)
LIS4:BenthicGeology Data: LIS phase 4 sediment core descriptions
LIS4:BenthicGeology Data: LIS phase 4 sediment core XRF chemical content data
LIS4:BenthicGeology Data: LIS phase 4 sediment core physical properties data
LIS4:BenthicGeology Data: LIS phase 4 sediment core location and acquisition information (Shapefile format)
Recent Citations
Oladejo et al., 2026,
A risk-informed multicriteria framework for ocean current energy site selection for Small Island Developing States,
Sci Rep, 16. doi: 10.1038/s41598-026-56952-1.
Wei et al., 2026,
Zoning texture and chemical composition of plagioclase recording magma recharge and mixing beneath Pako guyot in the West Pacific,
Solid Earth Sciences, 11, 100327-. doi: 10.1016/j.sesci.2026.100327.
Huang et al., 2026,
Active Hydrothermal Hydrogen Emissions in Continental Collision Settings: Insights From the Southeastern Tibetan Plateau,
Geochem Geophys Geosyst, 27. doi: 10.1029/2025GC012790.
Fitzgerald et al., 2026,
Field and Experimental Observations Show Elevated Shear Strength of Active Margin Sediments Requires Processes Beyond Normal Consolidation,
Geophysical Research Letters, 53. doi: 10.1029/2026GL122842.
Lai, et al., 2026,
Mantle Characteristics and the Genesis of Basalts in the Lamont Seamount, the Western Pacific,
Geological Journal of China Universities, 32(03), 416-426.
Kim, 2026,
Hydrogen isotope systematics of basaltic magmas: implications for the deep water cycle in the Earth’s mantle,
Geosci J, 30, 811-830. doi: 10.1007/s12303-026-00118-8.
Galley et al., 2026,
Tectonic Controls on Volcanism and Associated Hydrothermal Activity in a Sediment-Dominated Mid-Ocean Ridge; Escanaba Trough,
JGR Solid Earth, 131. doi: 10.1029/2025JB033347.
Barnes et al., 2026,
New Insights Into Hikurangi Subduction Inputs and Megathrust Host Rocks Spanning Along-Margin Changes in Fault Slip Behavior,
Geochem Geophys Geosyst, 27. doi: 10.1029/2025GC012734.
Bhatia and Srivastava, 2026,
Monsoon and vegetational shifts on the Indian plate since 66 Ma evidenced by megafossils,
Discover Geoscience, 4. doi: 10.1007/s44288-026-00559-6.
