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A tsunami strikes northeast Japan after the 2011 Tohoku Earthquake, generating waves up to 133 feet high along some areas of the coast.

Sizing a Tsunami

GPS helps scientists quickly forecast massive waves.
Feature Article
Dec. 28, 2020
Lascar volcano in Chile is the most active volcano in the central Andes, with several eruptions occurring during the 1990s.

Silent Signals

Synthetic aperture radar data and scientists in detecting the ground deformation associated with earthquakes and volcanic eruptions.
Feature Article
Dec. 28, 2020
Ice re-grows in a lead between two sea ice floes in the Beaufort Sea, Arctic Ocean, in March 2013.

Signs of Snow

Aircraft help probe the surface of Arctic sea ice.
Feature Article
Dec. 28, 2020
Pacific bluefin tuna are prodigious swimmers, able to cross the Pacific Ocean in less than a month.

Shadowing the Tuna Boats

Logbooks, satellites, and game theory help steward tuna in the Pacific.
Feature Article
Dec. 28, 2020
In Naruto, Japan, a boundary between different water masses appears as a sliver of still water beyond turbulent waters.

Salt of the Sea

Researchers study the recipe for salt, currents, and climate.
Feature Article
Dec. 28, 2020
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