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seafloor

An ocean bottom seismometer being lowered into the ocean by a research crew
Posted inNews

A New Understanding of the Mid-Atlantic Ridge and Plate Tectonics

by Jackie Rocheleau 8 March 20212 September 2022

The first seismic data obtained directly from the Mid-Atlantic Ridge suggest that upwelling may contribute to seafloor spreading.

Satellite image of dust carried from China into the north Pacific
Posted inNews

Dust on the Wind

by Nancy Averett 17 February 202126 January 2023

A new study confirms that an important wind system is shifting due to climate change.

Drone photograph of research vessel offshore Malta collecting geophysical data to map offshore freshened groundwater systems
Posted inEditors' Vox

Freshened Groundwater in the Sub-seafloor

by A. Micallef, M. Person, C. Berndt, Claudia Bertoni, A. Haroon, R. Martin-Nagle, T. Müller and E. Trembath-Reichert 11 January 202130 March 2023

Scientists are using a variety of geochemical, geophysical, and numerical methods to study offshore freshened groundwater and better understand its role in the global water cycle.

Satellite image of the island of Mayotte and its surrounding fringing reef
Posted inNews

New Volcano, Old Caldera

by Alka Tripathy-Lang 15 December 20206 September 2022

Researchers suggest a magma chamber sits within an old submarine caldera structure that extends into the mantle. Nearby, a new underwater volcano emerged with a flurry of seismicity.

Satellite image of ring-shaped Nukuoro Atoll in the Pacific
Posted inNews

Rethinking Darwin’s Theory of Atoll Formation

Lakshmi Supriya, Science Writer by L. Supriya 30 October 202010 November 2021

Atolls have a long and complex history related to seafloor evolution, and Darwin’s model is only the beginning of the story.

The toppled remains of a building on the shore of Palu Bay in Indonesia following a 2018 earthquake and tsunami
Posted inResearch Spotlights

Redes Sociales Ayudan a Revelar la Causa del Tsunami en Indonesia en el 2018

Aaron Sidder, freelance science writer by Aaron Sidder 21 October 20206 October 2021

Videos de Twitter y YouTube ayudaron a los científicos a descubrir los mecanismos físicos que generaron el gran tsunami en Palu Bay después de un terremoto de magnitud 7.5.

Diagram showing how magnetic anomalies formed at mid-ocean ridges record reversals of Earth’s geomagnetic field
Posted inResearch Spotlights

Steadying Mid-Ocean Ridge Spreading Rates

Kate Wheeling, freelance science writer by Kate Wheeling 4 September 202020 December 2021

Researchers used an up-to-date global magnetic anomaly data set to track the history of magnetic field reversals and obtain more accurate estimates of tectonic spreading rates.

Long tentacles of a Relicanthus stream above the seafloor
Posted inNews

Deep-Sea Mining May Have Deep Economic, Environmental Impacts

by James Dacey 3 August 202024 April 2025

A new report supports the creation of a compensation fund for nations that rely on terrestrial mining, but it fails to dispel environmental concerns over deep-sea mining.

Close-up of a rock containing methane-derived carbonates
Posted inNews

Oceanic Changes Correlate with Methane Seepage

Hannah Thomasy, Science Writer by Hannah Thomasy 8 June 20202 November 2021

Changes in sea level and organic carbon burial may have affected seafloor methane seepage over the past 150 million years.

The M/V Fugro Equator searches the seafloor for MH370
Posted inNews

Search for MH370 Revealed Ocean Crust Waves

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 8 June 202026 September 2023

Efforts to recover the missing airplane produced high-resolution bathymetry of the southern Indian Ocean that raises new ideas about how ocean crust forms.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

How Internal Waves Transport Energy Thousands of Miles Across the Ocean

26 March 202626 March 2026
Editors' Highlights

An Ancient Landscape Beneath the East Antarctic Ice Sheet

8 April 20266 April 2026
Editors' Vox

The Future of Earth’s Future

24 March 202624 March 2026
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