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

MGL2514 Data: Raw Seismic Navigation Data (P2 format) from the southern Mexico subduction zone, acquired during Langseth survey MGL2514 (2025)

MGL2514 Data: Seismic Source information files from the southern Mexico subduction zone, acquired during Langseth survey MGL2514 (2025)

MGL2514 Data: Seismic Navigation Shot Logs from the southern Mexico subduction zone, acquired during Langseth survey MGL2514 (2025)

MGL2514 Data: Processed Seismic Navigation Data (P1 format) from the southern Mexico subduction zone, acquired during Langseth survey MGL2514 (2025)

MGL2514 Segy Data: Multi-Channel Seismic Shot Data from the southern Mexico subduction zone, acquired during Langseth survey MGL2514 (2025)

FKt230918 Swath Data: Processed Acoustic Backscatter, Sidescan and Swath Bathymetry Data (EM712) from the Galapagos Islands, acquired during R/V Falkor (too) expedition FKt230918 (2023)

RR2308 Swath Data: Processed Acoustic Backscatter, Sidescan and Swath Bathymetry Data (EM124) acquired during R/V Roger Revelle expedition RR2308 (2023)

SUM0901E Swath Data: Processed Acoustic Backscatter, Sidescan and Swath Bathymetry Data (EM122) acquired during USNS Sumner expedition SUM0901E (2009)

FKt241011 Swath Data: Processed Acoustic Backscatter, Sidescan and Swath Bathymetry Data (EM124) acquired during R/V Falkor (too) expedition FKt241011 (2024)

RR2307 Swath Data: Processed Acoustic Backscatter, Sidescan and Swath Bathymetry Data (EM124) acquired during R/V Roger Revelle expedition RR2307 (2023)

Recent Citations

Li et al., 2026, Intraplate Volcanism Driven by Slab‐Plume Interaction: Numerical Modeling and Its Application to the Eifel, Massif Central and Hainan Volcanic Areas, JGR Solid Earth, 131. doi: 10.1029/2025JB032799.

Swanborn et al., 2026, Deep ocean seascape ecology: gaps and pathways for application, Landscape Ecology, 41. doi: 10.1007/s10980-025-02283-x.

Bécel et al., 2026, Deformation of the Upper Oceanic Crust in the Outer Rise of the Sumatra Subduction Zone: Insights From P- and Doubly Converted S-Wave Arrivals on Downward Continued Streamer Data, Geophysical Research Letters, 53. doi: 10.1029/2025GL119788.

Son et al., 2026, Comparative swarming dynamics of Antarctic krill and ice krill in the Ross Sea Region Marine Protected Area, Marine Environmental Research, 215, 107842-. doi: 10.1016/j.marenvres.2026.107842.

Shelly et al., 2026, Low-frequency earthquakes track the motion of a captured slab fragment, Science, 391, 294-299. doi: 10.1126/science.aeb2407.

Klaasen et al., 2026, Submarine seismicity monitoring with distributed acoustic sensing near Santorini and Kolumbo Volcano, Seismica, 5. doi: 10.26443/seismica.v5i1.1845.

Bertone et al., 2026, Cenozoic Evolution of the North-Eastern Mediterranean Basins, Tectonics, 45. doi: 10.1029/2025TC008896.

Gini et al., 2026, Interferometric synthetic aperture sonar for high-resolution seafloor mapping and imaging in contrasting geomorphological and benthic settings, Journal of Applied Geophysics, 246, 106087-. doi: 10.1016/j.jappgeo.2025.106087.

Pasqualini et al., 2026, Deep Water Renewal in the Amerasian Basin Derived From Natural and Anthropogenic Tracer Data Sets, JGR Oceans, 131. doi: 10.1029/2025JC023245.

Vander Auwera et al., 2026, Calbuco and Osorno volcanoes (Chile) tap into mantle sources that only differ by their water content, Contrib Mineral Petrol, 181. doi: 10.1007/s00410-025-02282-w.