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

Roach et al., 2026, Use of the Gulf of Mexico as an overwintering area by western North Atlantic white sharks (Carcharodon carcharias), , 53. doi: 10.1071/WR25033.

Wu et al., 2026, Oceanic upper crustal accretion by melt sill and lava flow interaction at Axial volcano, Nat Commun, 17. doi: 10.1038/s41467-026-70033-x.

Diao et al., 2026, Nearshore bathymetry estimation from SAR imagery based on the adaptive window guided by local wave direction, International Journal of Remote Sensing, 47, 3967-3999. doi: 10.1080/01431161.2026.2641156.

Tominaga et al., 2026, New Phoenix Magnetic Anomaly Data Confirms Global Nature of Jurassic Quiet Zone and Provides Insight Into Early Pacific Spreading, Geophysical Research Letters, 53. doi: 10.1029/2025GL117569.

Tian et al., 2026, The Longest Continuous Record of Internal Wave Deposits in the Modern Ocean: Implications for Deep-Sea Sediment Transport, JGR Oceans, 131. doi: 10.1029/2025JC023504.

Sgroi et al., 2026, The new earthquake locations and focal mechanisms catalogues for the western Ionian Sea, Italy, Sci Data, 13. doi: 10.1038/s41597-026-06979-w.

Liu et al., 2026, High productivity and multilayered circulation in the Late Cretaceous Arctic Ocean, Sci. Adv., 12. doi: 10.1126/sciadv.aec4895.

Abbott et al., 2026, A 600-km-long Seafloor Disruption in the Arctic Ocean (~2.8 Ma): Geochemical Evidence for a Marine Impact Event, Airbursts and Cratering Impacts, 4. doi: 10.14293/ACI.2026.0002.

Wan and Heron, 2026, Identifying main shock–aftershock sequences on the Longmen Shan Fault: comparison between two cluster analysis techniques, Geophys. J. Int., 245. doi: 10.1093/gji/ggag081.

Sánchez-Ramírez et al., 2026, Phylogenomic species delimitation reveals distinct pace and mode of lineage evolution in Amanita jacksonii, Molecular Phylogenetics and Evolution, 218, 108575-. doi: 10.1016/j.ympev.2026.108575.