Scientists studying South Pacific earthquakes suggest that an ultralow-velocity zone at the core-mantle boundary may be a remnant of a molten early Earth.
Pacific Ocean
Posted inFeatures
The 2-Year Countdown to Deep-Sea Mining
A small island nation is forcing the hand of international regulators to finalize rules for deep-sea mining, but scientists say the environmental consequences are not yet clear.
Posted inNews
Atmospheric Rivers Spur High-Tide Floods on U.S. West Coast
Researchers analyzed 36 years of data to understand how atmospheric rivers and other factors drive chronic coastal flooding.
Posted inEditors' Highlights
Atoll Seismometer Detection of Solitary Ocean Waves
Seismic recordings from the South China Sea indicate that subtle, daily tilting of shorelines due to passing internal ocean waves can be measured on land, promising new constraints on ocean dynamics.
Posted inNews
Tropical Climate Change Is a Puzzle—Could Aerosols Be a Piece?
The eastern tropical Pacific Ocean hasn’t warmed as much as climate change models projected. A new study shows that aerosols in the atmosphere could be responsible.
Posted inResearch Spotlights
First Report of Seismicity That Initiated in the Lower Mantle
A 4D back-projection method revealed that aftershocks of the 2015 earthquake beneath the Ogasawara (Bonin) Islands occurred as deep as about 750 kilometers.
Posted inResearch Spotlights
Hydrothermal Vents May Add Ancient Carbon to Ocean Waters
Data from a long-distance research cruise provide new insights into carbon cycling in the eastern Pacific and Southern Oceans.
Posted inResearch Spotlights
Remote-Controlled Ocean Drones Observe Atmospheric Cold Pools
Novel uncrewed sailing vehicles measured properties of atmospheric cold pools in hard-to-reach regions of the central and eastern tropical Pacific Ocean.
Posted inResearch Spotlights
Subduction Initiation May Depend on a Tectonic Plate’s History
New seismic imaging study of the Puysegur Trench aims to solve one of the last major questions in plate tectonics.