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

SZ4D Image Data: Processed bathymetry compilation maps (PNG images) for the Chilean subduction zone (2026)

SZ4D Grid Data: Processed gridded bathymetry data compilation (GeoTIFF grid format) for the Chilean subduction zone (2026)

CascadiaFrontalThrust_MBARI Image Geo Data: Processed bathymetry data (GeoTIFF images) acquired near-bottom using MBARI's Mapping AUV (MAUV1 and MAUV2) in 2021 from 41.72° N along the frontal thrust of the Cascadia Margin

CascadiaFrontalThrust_MBARI Grid Data: Processed bathymetry data (netCDF grids) acquired near-bottom using MBARI's Mapping AUV (MAUV1 and MAUV2) in 2021 from 41.72° N along the frontal thrust of the Cascadia Margin

CascadiaFrontalThrust_MBARI Data: Scripts used to create figures of data acquired near-bottom in 2021 from 41.72° N along the frontal thrust of the Cascadia Margin with MBARI's Mapping AUV (MAUV1 and MAUV2)

CascadiaFrontalThrust_MBARI Grid Data: Processed bathymetry data (ESRI ASCII grids) acquired near-bottom using MBARI's Mapping AUV (MAUV1 and MAUV2) in 2021 from 41.72° N along the frontal thrust of the Cascadia Margin

CascadiaFrontalThrust_MBARI Data: Processed CTD data acquired near-bottom in 2021 from 41.72° N along the frontal thrust of the Cascadia Margin with MBARI's Mapping AUV (MAUV2)

CascadiaFrontalThrust_MBARI Data: Raw MVC log data acquired near-bottom in 2021 from 41.72° N along the frontal thrust of the Cascadia Margin with MBARI's Mapping AUV (MAUV2)

CascadiaFrontalThrust_MBARI Swath Data: Processed swath bathymetry and acoustic backscatter data acquired near-bottom in 2021 from 41.72° N along the frontal thrust of the Cascadia Margin with MBARI's Mapping AUV (MAUV2)

CascadiaFrontalThrust_MBARI Data: Processed CTD data acquired near-bottom in 2021 from 41.72° N along the frontal thrust of the Cascadia Margin with MBARI's Mapping AUV (MAUV1)

Recent Citations

Moser et al., 2025, Slab Dehydration Linked to Great Earthquake Rupture Barriers Along the Alaska Peninsula, Geophysical Research Letters, 52. doi: 10.1029/2025GL115790.

Bogoliubskii et al., 2025, Formation of the Modern Structure of the American–Antarctic Ridge, Oceanology, 65, 599-609. doi: 10.1134/S0001437025700274.

Lastes et al., 2025, Characterization of the HIMU Mantle Source from Noble Gas Isotopes in Volcanic Gas Emissions in São Tomé (Cameroon Volcanic Line), ACS Earth Space Chem., 9, 2375-2387. doi: 10.1021/acsearthspacechem.5c00056.

Cho, 2025, Seismogenesis of Intermediate-Depth Earthquakes in the Cauca Cluster, Colombia, Thesis.

López-Gijón et al., 2025, Paleoparasitological evidence of helminth infections in individuals from two Late Iron Age necropolises in Northern Italy (3rd-1st c. BCE), International Journal of Paleopathology, 51, 1-9. doi: 10.1016/j.ijpp.2025.08.001.

Li et al., 2025, Sand provenance boundary in the Mu Us Sandy Land of northern China, Geomorphology, 490, 110005-. doi: 10.1016/j.geomorph.2025.110005.

Zhang et al., 2025, Preliminary Analysis of Distributed Acoustic Sensing (DAS) Data Using a Submarine Fiber-Optic Cable Across the North Anatolian Fault, Seismological Research Letters, 97, 606-615. doi: 10.1785/0220250049.

Zhang et al., 2025, Spreading modes at slow-spreading ridges shifted by mantle heterogeneity of the asthenosphere, National Science Review, 12. doi: 10.1093/nsr/nwaf385.

Young, 2025, Plume-Ridge Interaction in the Galápagos Volcanic Province: Geophysical Constraints on Crustal Thickness and Igneous Output Through Time, Thesis.

Bulut et al., 2026, Discovering the Paleolithic Ayvalık: A Strategic Crossroads in Early Human Dispersals Between Anatolia and Europe, Journal of Island and Coastal Archaeology, 21, 1-23. doi: 10.1080/15564894.2025.2542777.