Redoubt Volcano following April 2009 eruption
Polar bear female and two cubs on the Beaufort Sea, Alaska
Conducting lake surveys on the Kenai Peninsula, Alaska
Greater White-fronted Goose on the North Slope of Alaska
Regions L2 Landing Page Tabs
Alaska Volcano Observatory scientist Mark Hansen working with Larsen Bay Mayor David Harmes on how the AVO-4 particulate monitor operates.
Geologist and cataclastic shear zones in the Melozitna granite in the Ruby batholith. This granite contains abundant monazite and high levels of thorium and rare earth elements. The shear zones accelerate erosion of the granite into streams, where the monazite that contains the rare earth elements can be concentrated. This area is part of the Bureau of Land Management's...
A USGS geologist pans for monazite and rare earth minerals in Wolf Creek, which cuts through the Melozitna granite. This area is part of the Bureau of Land Management's Central Yukon Planning Area, which USGS did a mineral assessment of in 2015.
Scanning Electron Microscope image of resuspended volcanic ash from the 1912 Novarupta-Katmai deposits in the Katmai region, picked up during high winds on November 1, 2015 and carried to Larsen Bay on Kodiak Island, AK. Sample collected by Sherry Harmes of Larsen Bay.
Barter Island sits at the top of the Arctic National Wildlife Refuge in Alaska, and with the Arctic facing quickly rising temperatures, USGS wants to investigate what’s causing the North Slope bluffs to erode so quickly. This permafrost environment is complex, so USGS studies many facets-- from radon in the groundwater to sand grains along the coast-- of this frozen...
Allen Bondurant measuring the depth to permafrost along a thermokarst lake shore.
Fate of Alaska's large carbon reserves could affect greenhouse gas concentration.
Two public events are scheduled next week in the City of Kodiak, Alaska about monitoring old volcanic ash resuspended by high winds. Scientists invite the local community to learn more about the potential impacts of resuspended volcanic ash and how to assist in volcano hazards research by collecting samples of the redistributed volcanic ash and dust.
You really are what you eat. That’s the taking-off point for a new polar bear study, conducted by U.S. Geological Survey researchers with an assist from the Oregon Zoo — and published this week in the journal Physiological and Biochemical Zoology.
ANCHORAGE, Alaska — The U.S. Geological Survey released additional evidence that western Alaska remains a hot spot for avian influenza to enter North America.
The U.S. Geological Survey is pleased to announce the selection of Dr. Michelle Coombs as the next Scientist-in-Charge of the Alaska Volcano Observatory, a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
To commemorate the nation's first chief geographer, the USGS established the Henry Gannett Award. This year's recipient is Nicholas Mastrodicasa, Alaska Department of Transportation & Public Facilities, for his leadership in the Alaska Statewide Digital Mapping Initiative and the development of an elevation requirements study for Alaska.
Minutes after the 1964 magnitude-9.2 Great Alaska Earthquake began shaking, a series of tsunami waves swept through the village of Chenega in Prince William Sound, destroying all but two of the buildings and killing 23 of the 75 inhabitants.
New evidence for frequent large tsunamis at a remote island near Dutch Harbor, Alaska provides geological data to aid tsunami hazard preparedness efforts around the Pacific Rim.
ANCHORAGE, Alaska – A new digital geologic map of Alaska is being released today providing land users, managers and scientists geologic information for the evaluation of land use in relation to resource extraction, conservation, natural hazards and recreation.
ANCHORAGE, Alaska – Large and severe tundra fires cause top down permafrost thaw, playing a major role in altering Arctic landscapes according to a new study led by the U.S. Geological Survey.
ANCHORAGE, Alaska — A new scientific study predicts that some of Alaska’s mammal species will respond to future climate warming by concentrating in northern areas such as the Arctic National Wildlife Refuge and the National Petroleum Reserve of Alaska. If true, for many species, this would be a significant northward shift into tundra habitats where they are currently absent.
The Alaska Volcano Observatory has recently completed repairs to seismic monitoring equipment on Aniakchak Volcano on the Alaska Peninsula that have restored ground-based monitoring at the volcano.