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

MGL2304 Grid Data: 3-D tomographic P- and S-wave seismic velocity models of the Galápagos Plume (MarineIGUANA, IGUANA)

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)

Recent Citations

Kong et al., 2026, Ocean iron fertilization from enhanced mid-ocean-ridge volcanism due to ice-age sea-level falls, Nat. Geosci., 19, 706-714. doi: 10.1038/s41561-026-01982-7.

Peng et al., 2026, A 5.3-million-year-old deep-sea whale necropolis in the Diamantina Zone, Nature, 654, 978-983. doi: 10.1038/s41586-026-10546-z.

Ito et al., 2026, Intrusive Magmatism, Plate Stresses, and the Cause of Orthogonal Versus Oblique Spreading Mid-Ocean Ridges, Geochem Geophys Geosyst, 27. doi: 10.1029/2025GC012835.

Liu et al., 2026, A tectonic pulse triggered by mantle injection through a torn slab, Earth and Planetary Science Letters, 690, 120161-. doi: 10.1016/j.epsl.2026.120161.

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.

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.

Hoffman et al., 2024, Microbial strong organic-ligand production is tightly coupled to iron in hydrothermal plumes, Biogeosciences, 21, 5233-5246. doi: 10.5194/bg-21-5233-2024.

Heberlein et al., 2026, Oceanographic Influences and High Productivity Recorded in a Coastal Bay of the Amundsen Sea, West Antarctica, During the Holocene, Paleoceanography and Paleoclimatology, 41. doi: 10.1029/2025PA005410.

Journeau et al., 2026, OBS Data Mining Reveals Seismic Structure and Dynamics of the Oceanic Blanco Transform Fault, Northeast Pacific, JGR Solid Earth, 131. doi: 10.1029/2025JB032982.

Corbo-Camargo et al., 2026, The geothermal system of the San Pedro Dome constrained by magnetotelluric and lithological information, Geol. Soc. Am. Special Paper. doi: 10.1130/2026.2566(04).