A seismically quiet part of the Aleutian Subduction Zone may have caused tsunamis in the past—and may cause future tsunamis that could travel across the Pacific Ocean.
Alaska
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 inResearch Spotlights
Detecting Black Carbon in the Arctic Atmosphere
Measurements of light-absorbing carbon particles made during an Arctic research expedition could improve understanding of their effects on the Arctic climate.
Posted inResearch Spotlights
Tracking Carbon in the Alaskan Arctic
Researchers trace carbon through Arctic soils and find an unlikely source of methane and surprisingly low methane oxidation in watersheds throughout northern Alaska.
Posted inResearch Spotlights
Alaskan Wildfires Influence Permafrost Recovery
Warming climate reduces permafrost's ability to recover following wildfires in Alaskan lowland forest.
Posted inNews
Active Mud Volcano Field Discovered off Southeast Alaska
A cruise to study landslide potential along an earthquake-prone fault found a surprising methane plume.
Posted inResearch Spotlights
Seismic Signals Reveal Changes in Water Release from Glaciers
Seismometers could help scientists monitor elusive fluctuations in water discharge from glaciers that flow into the ocean.
Posted inNews
Obama Uses Alaska Tour to Focus on Climate Change
In speeches and planned visits to a threatened village and a receding glacier, President Obama makes the case that global warming is happening now and warrants immediate action.
Posted inResearch Spotlights
Ancient Earthquakes Made an Island Rise and Fall
Observations track elevation changes of an island in the Kodiak Archipelago to past ruptures of the Alaska-Aleutian megathrust fault.