Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted.  For more information, please see www.doi.gov/shutdown

Regions

Alaska Region

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Mount Hood with Portland, Oregon in the foreground.
May 23, 2012

Mount Hood dominates the skyline outside of Portland, Oregon

A major eruption of Mount Hood would pose a great hazard to the regional economy.

August 24, 2011

USGS Science: Walrus Haul-Out 2011

Female Pacific walruses and their calves traditionally spend summers far from shore, diving for benthic invertebrates over the shallow continental shelf waters of the Chukchi Sea. These female walruses and their calves prefer to rest between forage bouts on sea ice drifting above their feeding grounds. However, in recent years loss of summer sea ice over the continental

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satellite image of brown resuspended volcanic ash cloud over Kodiak Island, Alaska
November 29, 2010

Satellite image of resuspended volcanic ash cloud over Kodiak Island, Alaska

MODIS Aqua 1 km true color satellite image showing resuspended volcanic ash cloud (arrow) generated from high winds scouring exposed ash on the Pacific side of the Katmai volcanic range. The cloud stretches across the Shelikof Straight and western Kodiak Island. Image ID 2010333 taken November 29, 2010. Courtesy NASA.

September 16, 2010

Walruses at Point Lay

During the course of our research on walruses hauled out near Point Lay in
early September, USGS obtained aerial video footage of the
walrus aggregation.  This footage was taken from an altitude of 4,000' with
a Cineflex camera by Daniel Zatz, of Zatzworks, on contract to USGS for
this work.  We are exploring the potential of this type of video for

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video thumbnail: Pacific Nearshore Project: Catching Sea Otters in the Wild
August 11, 2010

Pacific Nearshore Project: Catching Sea Otters in the Wild

How do you catch a sea otter? Very carefully. Researchers must use high-tech equipment and teamwork in order to safely capture these marine mammals and collect blood samples and conduct health exams as part of the Pacific Nearshore Project. The Pacific Nearshore Project is a multinational, multiagency project investigating sea otters as health indicators of coastal waters

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Redoubt Volcano viewed from the northwest following the April 4, 2009 eruption (Event 19). Steam rises from the summit crater, p
April 4, 2009

Redoubt Volcano viewed from the northwest following the April 4, 2009 eruption

Redoubt Volcano viewed from the northwest following the April 4, 2009 eruption (Event 19). Steam rises from the summit crater, pyroclastic flow and surge deposits drape the flanks, and lahar deposits cover the Drift River Valley. 

Ash fall accumulation from Redoubt Volcano in Nikiski after March 28, 2009 eruption plume
March 28, 2009

Ash fall accumulation from Redoubt Volcano in Nikiski after March 28, 2009 eruption plume

Photograph of impacts from the volcanic ash fall out in Nikiski, AK from Redoubt volcano. This plume was generated during the March 28, 15:29 AKDT, 2009 event, and ash fall began at approximately 16:16 AKDT and lasted maybe 5 minutes.

Attribution: Natural Hazards, Alaska
Ash is resuspended from Redoubt Volcano eruption
March 28, 2009

Ash is resuspended from Redoubt Volcano eruption

Ash is resuspended from Redoubt Volcano eruption

Attribution: Natural Hazards, Alaska
video thumbnail: Redoubt Volcano Plume
February 6, 2009

Redoubt Volcano Plume

Beginning in early November 2008 Redoubt Volcano, 106 miles southwest of Anchorage, AK, began to show signs of unrest including significant changes in gas emission and heat output. On November 5, 2008, the Alaska Volcano Observatory (AVO) raised Redoubt's Aviation Color Code to Yellow and the Volcano Alert Level to Advisory. A significant increase in earthquake activity

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Attribution: Alaska
video thumbnail: Okmok Volcano Eruption
July 20, 2008

Okmok Volcano Eruption

Video taken by AVO/USGS geologist Tina Neal during a USCG C-130 overflight of the eruption of Okmok Volcano and distant ash plume from Cleveland Volcano. July 21, 2008.

Attribution: Alaska
Filter Total Items: 81
USGS science for a changing world logo
March 20, 2014

Why does the 1964 Great Alaska Earthquake Matter 50 Years Later? Scientific experts will talk about a half-century of scientific and monitoring advances triggered by the 1964 events.

USGS science for a changing world logo
March 11, 2014

A recent U.S. Geological Survey-led study of the bar-tailed godwit, a shorebird known famously as the ultimate marathon champion of bird flight, suggests that these birds can sense broad weather patterns and optimally time their long, nonstop, transoceanic migrations to destinations thousands of miles away. 

Sea otter in kelp
February 28, 2014

Nearly 25 years after the Exxon Valdez oil spill injured wildlife off the coast of Alaska, a new report issued today by the U.S. Geological Survey indicates that sea otters have returned to pre-spill numbers within the most heavily oiled areas of Prince William Sound.

USGS science for a changing world logo
February 20, 2014

It's 1964 in Alaska. Imagine 4.5 minutes of powerful ground shaking underneath you from a magnitude 9.2 earthquake. You and your loved ones are then faced with resulting landslides and a devastating tsunami. You just experienced the largest earthquake ever recorded in North America. 

Image: Black Brant Geese
January 21, 2014

Scientists with the U.S. Geological Survey report that warming temperatures are leading to the creation of high quality habitats for geese along the Arctic coast of Alaska. This scientific finding is contrary to the deleterious effects that warming global temperatures are having on habitats of sea ice-dependent animals, such as polar bear and walrus.

USGS science for a changing world logo
October 7, 2011

Stephen Gray has been selected as the center director of the Department of the Interior’s Alaska Climate Science Center, located at the University of Alaska, Fairbanks, in Anchorage.

USGS science for a changing world logo
May 16, 2011

Marine biologists are gathering in Alaska this week to kick off a three-week expedition studying sea otters, as part of a joint U.S.-Canadian project to investigate the ecological health of the Pacific coastline.

The "Pacific Nearshore Project" is a multinational, multiagency project investigating sea otters as health indicators of coastal waters and marine resources from California nort

USGS science for a changing world logo
February 18, 2009

Coastal erosion has more than doubled in Alaska - up to 45 feet per year - in a 5-year period between 2002 and 2007 along a 40-mile stretch of the Beaufort Sea.

USGS science for a changing world logo
January 30, 2009

As of Wednesday, February 4, 2009, the Alaska Volcano Observatory will discontinue holding daily briefings on the status of Redoubt Volcano until further notice. We will announce new briefings when significant information becomes available or the status of the volcano changes.