Marine Geoscience Data System

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.

Search for Multi-Channel Seismic Data

Search for Single-Channel Seismic Data

List all Seismic Data Sets

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).

Search for ROV data (e.g. Jason and SuBastian)

Search for AUV Data (e.g. Sentry and MBARI Mapping AUV)

Search for HOV Data (Alvin)

Related Resources

Data systems and tools that were formerly operated as part of IEDA continue to offer complementary data products and services, including:

GMRT Global Bathymetry
GeoMapApp
Antarctic Data (USAP-DC)
IEDA

Recent Data Contributions

EW9803 Grid Data: Seismic P-wave velocity models (netCDF format) for the Lesser Antilles Subduction Zone area (EW9803, 1998)

EW9803 Data: Velocity model navigation files (ASCII format) for the Lesser Antilles Subduction Zone area (EW9803, 1998)

MGL2315 Data: Seismic Source information files from the Puerto Rico Trench, acquired during Langseth cruise MGL2315 (2023)

MGL2315 Data: Seismic Navigation Shot Logs from the Puerto Rico Trench, acquired during Langseth cruise MGL2315 (2023)

MGL2315 Data: Raw Seismic Navigation Data (P2 format) from the Puerto Rico Trench, acquired during Langseth cruise MGL2315 (2023)

MGL2315 Data: Processed Seismic Navigation Data (P1 format) from the Puerto Rico Trench, acquired during Langseth cruise MGL2315 (2023)

MGL2315 Segy Data: Multi-Channel Seismic Shot Data from the Puerto Rico Trench, acquired during Langseth cruise MGL2315 (2023)

MGL2309 Data: Seismic Navigation Shot Logs from the Carolina Trough and Blake Plateau, acquired during Langseth cruise MGL2309 (2023)

MGL2309 Data: Raw Seismic Navigation Data (P2 format) from the Carolina Trough and Blake Plateau, acquired during Langseth cruise MGL2309 (2023)

MGL2309 Data: Processed Seismic Navigation Data (P1 format) from the Carolina Trough and Blake Plateau, acquired during Langseth cruise MGL2309 (2023)

Recent Citations

Novaczek, 2025, From local to regional seabed maps: Developing the methods and data products needed for marine conservation planning in Newfoundland and Labrador, Thesis.

Jaffe et al., 2025, Abundant and metabolically flexible bacterial lineages underlie a vast potential for rubisco-mediated carbon fixation in the dark ocean, Genome Biology, 26. doi: 10.1186/s13059-025-03625-3.

Lynton and Rose, 2025, Evidence for mineral stratification in a zoned basaltic magma body at Kīlauea Volcano, Hawai’i: insights from the Kulanaokuaiki-3 tephra (≥1.0 ka), Contrib Mineral Petrol, 180. doi: 10.1007/s00410-025-02230-8.

Hwang et al., 2025, Heterogeneous density structure of seamounts: a sign count analysis of gravity anomalies, Geosci J. doi: 10.1007/s12303-025-00042-3.

Heatley, 2025, Characterizing Water Quality and Effectiveness of a Constructed Wetland/Pond System to Remediate Nutrient Loads in a Carbonate Spring in South Central Pennsylvania, Thesis.

Rull, 2025, Where were the Caribbean mangroves during the Last Glacial Maximum? A preliminary microtopographical appraisal, Estuarine, Coastal and Shelf Science, 323, 109404-. doi: 10.1016/j.ecss.2025.109404.

Katumwehe et al., 2025, How do propagating rifts breach Cratons? Insights from the northwestern branch of the East African Rift, Uganda, Geophys. J. Int., 242. doi: 10.1093/gji/ggaf214.

Mershon et al., 2025, The Detroit volcanic province and the early evolution of the Hawaiian mantle plume, Earth and Planetary Science Letters, 666, 119484-. doi: 10.1016/j.epsl.2025.119484.

Worthey et al., 2025, Expansion of forest cover and coeval shifts in Later Stone Age land-use at Taforalt and Rhafas Caves, Morocco, as inferred from carbon isotopes in ungulate tooth enamel, PLoS ONE, 20, e0325691-. doi: 10.1371/journal.pone.0325691.

Bernhardt and Schwanghart, 2025, Seafloor slopes control submarine canyon distribution: A global analysis, Sci. Adv., 11. doi: 10.1126/sciadv.adv3942.