When volcanic mountains slide into the sea, they trigger tsunamis. How big are these waves, and how far away can they do damage? Ritter Island provides some answers.
Seafloor morphology, geology, and geophysics
Posted inNews
Seafloor Data from Lost Airliner Search Are Publicly Released
Detailed maps of the bottom of the Indian Ocean reveal deep canyons and landslides but no wreckage of Malaysia Airlines flight MH370, which went missing in 2014.
Posted inScience Updates
Scientists Spend Arctic Winter Adrift on Sea Ice
A hovercraft-based ice drift station gives researchers access to previously inaccessible regions of the changing Arctic sea ice cover off the coast of Greenland.
Posted inResearch Spotlights
Earthquakes May Prevent Underwater Landslides
Smaller quakes around the active edge of continental plates may contribute to increased stability by promoting compaction and solidifying the top 100 meters of seafloor sediment.
Posted inResearch Spotlights
Alaska's Semidi Segment Could Unleash a Devastating Tsunami
Study reveals structures along the Alaskan convergent margin capable of generating a powerful tsunami directed toward the United States's West Coast.
Posted inScience Updates
New Insights from Seafloor Mapping of a Hawaiian Marine Monument
New surveys help untangle the complex geologic history of the Hawaiian Archipelago and provide hints about where to seek marine life.
Posted inResearch Spotlights
Rapid Gas Hydrate Forms Pockmarks in Nigeria's Seafloor
The seafloor in deep water regions off the coast of Nigeria is speckled with pockmarks that scientists suggest were mainly made by the rapid formation of gas hydrate.
Posted inNews
NOAA Research Vessel Explores Atlantic Ocean Seamounts
NOAA’s Okeanos Explorer and two remotely operated vehicles help scientists investigate creatures, habitat, and geology on and near New England seamounts.