Unified Interior Regions

Alaska

The Alaska Region represents a resource-rich, dynamic landscape shaped by volcanos, earthquakes, major rivers, and glaciers. Here, we conduct research to inform management of Alaska’s extensive natural resources, inform national Arctic energy policy, and provide scientific information to help others understand, respond to, and mitigate impacts from natural hazards.

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Filter Total Items: 205
Date published: October 7, 2019
Status: Active

Community Outreach and Engagement

It is critically important that Alaska Native, rural communities and tribal organizations and Alaska co-management councils are kept informed of USGS research activities and findings. Involvement of and collaboration with students also provides valuable perspectives to USGS science. This page offers information on how USGS communicates its activities and seeks opportunities to gain important...

Date published: September 25, 2019
Status: Active

Alaska Earth Mapping Resources Initiative (Earth MRI)

Our objective is to provide a strategic framework for planning, coordination, and execution of the USGS Earth Mapping Resources Initiative (Earth MRI) in Alaska. Earth MRI aims to improve knowledge of the U.S. geologic framework through new geological and geophysical mapping and to identify areas that have the potential to contain undiscovered critical mineral resources.

Date published: September 11, 2019
Status: Active

Seabird Die-offs in Alaska

Beginning in 2015, large numbers of dead seabirds have been appearing on beaches in most marine areas of Alaska. Although seabird die-offs are known to occur sporadically (e.g. 1970, 1989, 1993, 1997/1998, and 2004) in Alaska, these recent die-offs have been distinguished from past events by their increased frequency, duration, geographic extent, and number of different species involved. 

Date published: September 9, 2019
Status: Active

Tracking Data for Blue-winged Teal (Anas discors)

Available here are tracking data of Blue-winged Teal, a duck species that breeds throughout much of North America and whose wintering range includes neotropical areas of the Caribbean and Central and South America, thus providing a migratory link between the continents of North and South America. These data were collected to better understand the timing and patterns of migratory movement of...

Date published: September 5, 2019
Status: Active

Tracking Data for Northern Pintails (Anas acuta)

Available here are tracking data of Northern Pintails, a duck species that, in Alaska, nests throughout the state and in adjacent regions of Russia and Canada. These data were collected to better understand the timing and patterns of migratory movements of Northern Pintails from wintering grounds in Japan as part of a project on the possible spread of Eurasian forms of avian influenza to North...

Date published: September 5, 2019
Status: Active

Tracking Data for Red-throated Loons (Gavia stellata)

Available here are tracking data of Red-throated Loons, a species that breeds in coastal areas throughout Alaska and winters along the Pacific coasts of North America and Eurasia. These data were collected to better understand the patterns of migratory movements and seasonal use of different regions of Alaska.

Date published: August 21, 2019
Status: Completed

Potential Landslide Paths and Implications for Tsunami Hazards in Glacier Bay, Alaska – An Initial Investigation

Glacier Bay and its inlets are a popular destination for cruise ships and passenger boats; about 540,000 people visited Glacier Bay National Park and Preserve (GBNPP) in 2017. A typical tour of the Bay traverses the entire length up to the glacier calving viewpoints in the Johns Hopkins and Tarr Inlets.  A 2018 article “Landslides and Giant Waves” by the National Park Service (NPS) states, “...

Date published: July 31, 2019
Status: Active

USGS Alaska Science Center Wildlife Tracking Data Collection

Understanding the short- and long-distance movements of wildlife is critical for a wide variety of ecological research questions and management decisions. Since the mid-1980s, the USGS Alaska Science Center has used information from telemetry devices on wildlife species to determine locations of animals throughout their annual cycles, understand patterns of habitat use, quantify time spent on...

Date published: July 22, 2019
Status: Active

Tracking Data for Marbled Godwits (Limosa fedoa)

Available here are tracking data of Marbled Godwits, a large-bodied shorebird that, in Alaska, nests in the southwestern portion of the state. These data were collected to better understand the timing and patterns of migratory movements and seasonal use of different coastal areas in the Pacific region.

Date published: July 11, 2019
Status: Active

Harmful Algal Bloom Toxins in Alaska Seabirds

Elevated ocean temperatures are linked to the development of harmful algal blooms (HABs). Toxins from these blooms may pose health threats to marine organisms, including seabirds. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine...

Date published: June 28, 2019
Status: Active

Seismic Seiches

Definition of seismic seiches and examples dating back to their first public mention in 1755.

Date published: June 26, 2019
Status: Active

Information by Region-Alaska

  

Filter Total Items: 213
Date published: July 29, 2020

Argos Satellite Tracking Data for Spectacled Eiders (Somateria fischeri) - Processed Data

This metadata document describes the data contained in the "processedData" folder of this data package. This data package contains all data collected by the Argos System from 217 satellite transmitters attached to Spectacled Eiders on their breeding range in arctic and western Alaska and northeastern Russia, 1993-2011. The raw data were processed to accomplish two goals: flag implausible

Date published: July 29, 2020

Argos Satellite Tracking Data for Spectacled Eiders (Somateria fischeri) - Raw Data

This metadata document describes the data contained in the "rawData" folder of this data package. This data package contains all data collected by the Argos System from 217 satellite transmitters attached to Spectacled Eiders on their breeding range in arctic and western Alaska and northeastern Russia, 1993-2011. Five data files are included in the "rawData" folder of this data package.

Date published: July 28, 2020

Genomic Data from Ptarmigan and Grouse, Alaska, 2015-2019

This data set provides sample data and NCBI accession information for genomic sequencing of ptarmigan and grouse from Alaska.

Date published: July 21, 2020

U-Pb Isotopic Data and Ages of Zircon and Titanite from Rocks from the Western Alaska Range, Northern Aleutian Range, Taylor Mountains, and Tikchik Mountains Regions, Alaska

This data set contains U-Pb isotopic data and ages of zircon
and titanite from igneous and metamorphic rocks collected
from the western Alaska and northern Aleutian Range of
south-central Alaska. The data sets also contain U-Pb isotopic
data and ages of detrital zircon from sedimentary and
metasedimentary rocks collected in the same region but also
from the...

Date published: July 21, 2020

Metabarcoding of Feces of Pacific Walruses and Autosomal DNA Sequence Data of Marine Invertebrates, 2012-2015, Alaska.

This data set describes nucleotide sequence data derived from 18S ribosomal DNA amplified in two fragments. A total of 87 feces from Pacific walrus and 57 marine invertebrates were examined for this study. Samples were collected from the Bering Sea and Chukchi Sea, Alaska. Samples used in the study originated from feces or muscle samples collected in the field from ice floes or benthic van...

Date published: July 17, 2020

Water Level, Temperature, and Discharge of Headwater Streams in the Yukon River Basin, Alaska, 2016 and 2017

This data set includes 15-minute interval data on stream temperature, stage, and discharge from low-order streams in the Yukon River Basin in interior Alaska, collected during the summer months. The depth of the water and temperature were determined using a combined pressure transducer and temperature sensor that was deployed through the summer months. Different sensors were used in each s...

Date published: July 17, 2020

Fortymile River Cosmogenic Isotope and Luminescence Data Collected 2016-2019

This dataset comprises four tables containing cosmogenic beryllium-10 and aluminum-26 concentrations and related data, as well as infrared stimulated luminescence data, from samples collected at 21 sites along the Fortymile River in eastern Alaska and Yukon, Canada between 2016 to 2018, and processed between 2016 and 2019. The file “geology_siteLocations_Fortymile_bender_2020.csv%

Date published: July 6, 2020

Lake Trout Otolith Growth Increment Measurements, Lake Clark National Park and Preserve, Alaska, 1979-2012

This data set documents the width of annual otolith growth increments from Lake Trout collected in lakes within Lake Clark National Park and Preserve, Alaska. The analysis of this data was published in von Biela et al. 2020 (DOI: 10.1111/eff.12566)

Date published: July 1, 2020

Temporal Viral Viability Data from Avian Influenza A Viruses Maintained in North American Wetlands Under Experimental and Environmental Conditions

Data sets containing: (1) sample collection and influenza A virus (IAV) screening information for wild ducks, (2) water temperature data for six North American wetlands, (3) water quality measurement from those wetlands, (4) laboratory-based study of viral viability using Minnesota wetland water, (5) naive mallards challenged experimentally with IAVs identified f

Date published: June 26, 2020

Argos GPS Satellite Tracking Data for Three Large-Bodied Gull Species and Hybrids (Larus spp.) - Raw Data

This metadata document describes the data contained in the "rawData" folder of this data package. This data package contains all data collected from 42 Argos-linked GPS satellite transmitters attached to three species of large-bodied gulls (genus Larus) and hybrids thereof, captured at landfills in southcentral, western and northern Alaska. The transmitters carried GPS receivers, so

Date published: June 26, 2020

Bouguer gravity and magnetic susceptibility measurements at Iliamna Volcano, Alaska 2019

Gravity data were collected in August of 2019 at 21 sites on and around Iliamna Volcano and Anchorage, Alaska. Measurements were taken with a Lacoste & Romberg G-161 meter and reduced to obtain the complete Bouguer anomaly. A total of 39 magnetic susceptibility measurements were taken at 13 locations using a ZH Instruments SM30 susceptibility meter. This data release includes...

Date published: June 26, 2020

Argos GPS Satellite Tracking Data for Three Large-Bodied Gull Species and Hybrids (Larus spp.) - Processed Data

This metadata document describes the data contained in the "processedData" folder of this data package. This data package contains all data collected from 42 Argos-linked GPS satellite transmitters attached to three species of large-bodied gulls (genus Larus) and hybrids thereof, captured at landfills in southcentral, western and northern Alaska. The transmitters carried GPS receivers

Filter Total Items: 138
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Year Published: 2016

Observations and modeling of fjord sedimentation during the 30 year retreat of Columbia Glacier, AK

To explore links between glacier dynamics, sediment yields and the accumulation of glacial sediments in a temperate setting, we use extensive glaciological observations for Columbia Glacier, Alaska, and new oceanographic data from the fjord exposed during its retreat. High-resolution seismic data indicate that 3.2 × 108 m3 of sediment has...

Love, Katherine B; Hallet, Bernard; Pratt, Thomas L.; O'Neel, Shad

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Year Published: 2016

Hyperspectral surveying for mineral resources in Alaska

Alaska is a major producer of base and precious metals and has a high potential for additional undiscovered mineral resources. However, discovery is hindered by Alaska’s vast size, remoteness, and rugged terrain. New methods are needed to overcome these obstacles in order to fully evaluate Alaska’s geology and mineral resource...

Kokaly, Raymond F.; Graham, Garth E.; Hoefen, Todd M.; Kelley, Karen D.; Johnson, Michaela R.; Hubbard, Bernard E.
Kokaly, R.F., Graham, G.E., Hoefen, T.M., Kelley, K.D., Johnson, M.R., and Hubbard, B.E., Hyperspectral surveying for mineral resources in Alaska: U.S. Geological Survey Fact Sheet 2016-3029, 2 p., http://dx.doi.org/10.3133/fs20163029.

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Year Published: 2016

The geochemical atlas of Alaska, 2016

A rich legacy of geochemical data produced since the early 1960s covers the great expanse of Alaska; careful treatment of such data may provide significant and revealing geochemical maps that may be used for landscape geochemistry, mineral resource exploration, and geoenvironmental investigations over large areas. To maximize the spatial density...

Lee, Gregory K.; Yager, Douglas B.; Mauk, Jeffrey L.; Granitto, Matthew; Denning, Paul; Wang, Bronwen; Werdon, Melanie B.
Lee, G.K., Yager, D.B., Mauk, J.L, Granitto, Matthew, Denning, P.D., Wang, Bronwen, and Werdon, M.B., 2016, The Geochemical Atlas of Alaska, 2016: U.S. Geological Survey Data Series 908, 25 p., 272 sheets (11"×17"), GIS database, http://dx.doi.org/10.3133/ds908.

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Year Published: 2016

Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974

The Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs were active over the period 1950–1974. Under these programs, the Federal Government contributed financial assistance in the exploration for certain strategic and critical minerals. The...

Frank, David G.
Frank, D.G., 2016, Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974: U.S. Geological Survey Data Series 1004, http://dx.doi.org/10.3133/ds1004.

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Year Published: 2016

Baseline and projected future carbon storage and greenhouse-gas fluxes in ecosystems of Alaska

This assessment was conducted to fulfill the requirements of section 712 of the Energy Independence and Security Act of 2007 and to contribute to knowledge of the storage, fluxes, and balance of carbon and methane gas in ecosystems of Alaska. The carbon and methane variables were examined for major terrestrial ecosystems (uplands and wetlands) and...

Zhu, Zhiliang; McGuire, A. David
Zhu, Zhiliang, and McGuire, A.D., eds., 2016, Baseline and projected future carbon storage and greenhouse-gas fluxes in ecosystems of Alaska: U.S. Geological Survey Professional Paper 1826, 196 p., http://dx.doi.org/10.3133/pp1826.

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Year Published: 2016

Extending Alaska's plate boundary: tectonic tremor generated by Yakutat subduction

The tectonics of the eastern end of the Alaska-Aleutian subduction zone are complicated by the inclusion of the Yakutat microplate, which is colliding into and subducting beneath continental North America at near-Pacific-plate rates. The interaction among these plates at depth is not well understood, and further east, even less is known about the...

Wech, Aaron G.

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Year Published: 2016

A possible transoceanic tsunami directed toward the U.S. west coast from the Semidi segment, Alaska convergent margin

The Semidi segment of the Alaska convergent margin appears capable of generating a giant tsunami like the one produced along the nearby Unimak segment in 1946. Reprocessed legacy seismic reflection data and a compilation of multibeam bathymetric surveys reveal structures that could generate such a tsunami. A 200 km long ridge or escarpment with...

von Huene, Roland E.; Miller, John J.; Dartnell, Peter
von Huene, Roland, John J. Miller, and Peter Dartnell, 2015, A Possible Transoceanic Tsunami Directed toward the U.S. West Coast from the Semidi Segment, Alaska Convergent Margin: Geochemistry, Geophysics, Geosystems, v. 17 i. 3, pp. 645-659, doi:10.1002/2015GC006147.

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Year Published: 2016

Postseismic gravity change after the 2006–2007 great earthquake doublet and constraints on the asthenosphere structure in the central Kuril Islands

Large earthquakes often trigger viscoelastic adjustment for years to decades depending on the rheological properties and the nature and spatial extent of coseismic stress. The 2006 Mw8.3 thrust and 2007 Mw8.1 normal fault earthquakes of the central Kuril Islands resulted in significant postseismic gravity change in Gravity Recovery and Climate...

Han, Shin-Chan; Sauber, Jeanne; Pollitz, Fred

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Year Published: 2016

Apatite fission-track evidence for regional exhumation in the subtropical Eocene, block faulting, and localized fluid flow in east-central Alaska

The origin and antiquity of the subdued topography of the Yukon–Tanana Upland (YTU), the physiographic province between the Denali and Tintina faults, are unresolved questions in the geologic history of interior Alaska and adjacent Yukon. We present apatite fission-track (AFT) results for 33 samples from the 2300 km2 western Fortymile...

Dusel-Bacon, Cynthia; Bacon, Charles R.; O'Sullivan, Paul B.; Day, Warren
Dusel-Bacon, C., Bacon, C.R., O’Sullivan, P.B., and Day, W.C., 2016, Apatite fission-track evidence for regional exhumation in the subtropical Eocene, block faulting, and localized fluid flow in east-central Alaska. Canadian Journal of Earth Sciences, v.53, p. 260–280, dx.doi.org/10.1139/cjes-2015-0138. http://www.nrcresearchpress.com/doi/pdf/10.1139/cjes-2015-0138

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Year Published: 2016

Improved geomagnetic referencing in the Arctic environment

Geomagnetic referencing uses the Earth’s magnetic field to determine accurate wellbore positioning essential for success in today's complex drilling programs, either as an alternative or a complement to north-seeking gyroscopic referencing. However, fluctuations in the geomagnetic field, especially at high latitudes, make the application of...

Poedjono, B.; Beck, N.; Buchanan, A. C.; Borri, L.; Maus, S.; Finn, Carol; Worthington, E. William; White, Tim
Poedjono, B., Beck, N., Buchanan, A.,Buchanan, A., Borri, L., Maus, S., Finn, C. A., Worthington, E. W. & White, T., 2013. Improved geomagnetic referencing in the Arctic environment, SPE-166850-MS, SPE Arctic and Extreme Environments Technical Conference and Exhibition, 15-17 October, Moscow, Russia, doi:10.2118/166850-MS.

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Year Published: 2016

Unusually large tsunamis frequent a currently creeping part of the Aleutian megathrust

Current models used to assess earthquake and tsunami hazards are inadequate where creep dominates a subduction megathrust. Here we report geological evidence for large tsunamis, occurring on average every 300–340 years, near the source areas of the 1946 and 1957 Aleutian tsunamis. These areas bookend a postulated seismic gap over 200 km long...

Witter, Robert C.; Carver, G.A.; Briggs, Richard W.; Gelfenbaum, Guy R.; Koehler, R.D.; La Selle, SeanPaul M.; Bender, Adrian M.; Engelhart, S.E.; Hemphill-Haley, E.; Hill, Troy D.

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Year Published: 2015

Paleoseismology of the Denali fault system at the Schist Creek site, central Alaska

Two hand-dug trenches at the Schist Creek site on the Denali fault system in central Alaska exposed evidence of four surface-rupturing earthquakes on the basis of upward terminations of fault strands and at least one buried, scarp-derived colluvial wedge. Limited radiocarbon ages provide some constraints on times of the ruptures. The youngest...

Personius, Stephen F.; Crone, Anthony J.; Burns, Patricia A.C.; Rozell, Ned
Personius, S.F., Crone, A.J., Burns, P.A.C, and Rozell, Ned, 2015, Paleoseismology of the Denali fault system at the Schist Creek site, central Alaska: U.S. Geological Survey Open-File Report 2015-1225, 15 p., 1 oversize plate, http://dx.doi.org/10.3133/ofr20151225.

Filter Total Items: 1,101
Keychain in Inupiaq for USGS outreach activities about bird banding and reporting
December 3, 2019

Keychain in Inupiaq for USGS outreach activities about bird banding

Keychain developed for USGS outreach activities about bird banding and reporting in Inupiaq and English. Inupiaq translation provided by Qaiyaan and Jana Harcharek.

October 31, 2019

Animation depicting seasonal cycles on Alaska's Arctic bluffs

In the spring, winter sea ice thaws and moves offshore leaving the coast exposed to increased wave action and relatively warm water temperatures that, when in contact with the bluff, erodes the toe of the bluff. Additionally, warm air temperatures during the spring and summer months thaw the upper layers of permafrost causing erosion or sloughing of the bluff face above

Tundra swan on the Colville River Delta
October 31, 2019

Tundra swan on the Colville River Delta, Alaska

Tundra swan on the Colville River Delta, Alaska 2013.

October 24, 2019

Climate Adaptation Planning with Alaska-Based Adaptation Tools

The dynamic landscape and climate of Alaska presents many challenges to the over 200 communities that live in rural areas of the state and have a wide variety of resource needs. Coastal and riverine erosion, flooding, wildfire, permafrost dynamics and increasing temperatures act as drivers for many of these landscape changes. Both the Alaska Climate Adaptation Science

Beaver dam and lodge on the Wrench Creek, Noatak National Preserve
October 16, 2019

Beaver dam and lodge on the Wrench Creek, Noatak National Preserve

Beaver dam and lodge on the Wrench Creek, Noatak National Preserve

Beaver dam complex and lodge at the confluence of Wrench Creek and Kelly River, Noatak National Preserve
October 16, 2019

Beaver dam complex and lodge at the confluence

Beaver dam complex and lodge at the confluence of Wrench Creek and Kelly River, Noatak National Preserve

Adult Pacific salmon (Oncorhynchus nerka) caught in impounded water above beaver dam. >2 5rKM from coast
October 9, 2019

Adult Pacific salmon caught in impounded water above beaver dam

Adult Pacific salmon (Oncorhynchus nerka) caught in impounded water above beaver dam. >25 rKM (river KM) from coast.

A drainage gully through Arctic tundra with slumped chunks of turf and permafrost.
September 30, 2019

Drainage gully in coastal bluffs of Barter Island

Along the stretch of coastal bluffs of Barter Island, North Slope of Alaska, a new drainage gully developed between September 2018 and September 2019. USGS scientists have been measuring permafrost degradation, coastal erosion, and flooding hazards on and around Barter Island for the last decade.

A polar bear print in mud with a person's hand next to it.
September 30, 2019

Polar bear print

Cordell Johnson holds his hand next to a polar bear's footprint.

View from above looking back at a coastal bluff where large sections have collapsed and crumbled onto the beach.
September 30, 2019

Oblique view of Barter Island bluffs

Example of a high-oblique photograph taken with an unmanned aerial system (UAS), or drone, of the coastal bluffs of Barter Island on North Slope of Alaska. The photographs from different time periods can be compared, using a technique called structure-from-motion photogrammetry, to measure changes in the coastal bluffs. This area of Alaska is experiencing very high rates

...
View looking at a coastal bluff where a large chunk has collapsed onto the beach.
September 30, 2019

Low-oblique view of Barter Island bluffs

Example of a low-oblique photograph taken with an unmanned aerial system (UAS), or drone, of the coastal bluffs of Barter Island on North Slope of Alaska. The photographs from different time periods can be compared, using a technique called structure-from-motion photogrammetry, to measure changes in the coastal bluffs. This area of Alaska is experiencing very high rates of

...
Filter Total Items: 283
Regional map showing the Gulf of Alaska and epicenter of M7.9 earthquake
January 23, 2018

The USGS has up-to-date details on the January 23, 2018 event.

Image shows a river winding through a green landscape
December 22, 2017

Less than 80 miles from Prudhoe Bay, home to the giant oil fields that feed the Trans-Alaska Pipeline, lies the site of USGS’ latest oil and gas assessment: the National Petroleum Reserve-Alaska and adjacent areas. Managed by the Bureau of Land Management, the NPR-A covers 22.8 million acres, more than the entire state of South Carolina.

Photograph shows an eroding coastline along the Arctic bluffs of Alaska, with a building falling into the sea.
December 11, 2017

USGS scientists at the Pacific Coastal and Marine Science Center spoke by phone with Scientific American writer Andrea Thompson on November 15.

Map of Alaska’s north coast showing color-coded rates of shoreline erosion, Inset: Polar bear on Barter Island.
November 28, 2017

The USGS updated its shoreline-change rates for Alaska’s north coast between the U.S.-Canadian Border and Icy Cape as part of the National Assessment of Coastal Change Hazards.

Drill Rig at the Mt. Elbert Test Site
October 20, 2017

In the past decade, the development of the Barnett, Eagle Ford, Marcellus, and other shales has dominated the national consciousness regarding natural gas. But in Alaska, another form of natural gas has been the focus of research for decades—methane hydrate.

3 men leaning over big yellow metal grab bucket on the deck of a ship. Dark sediment is visible inside bucket
October 19, 2017

An international team of scientists just finished probing the depths of the Pacific Ocean offshore of Alaska and British Columbia, to better understand the Queen Charlotte-Fairweather Fault. During the past century, the 700-mile-long fault has generated at least half a dozen major earthquakes, and future shocks threaten coastal communities in both the United States and Canada.

Alaska mapping status map showing 84% statewide IfSAR coverage available
July 24, 2017

The USGS continues to collect high resolution elevation data, contributing to greatly improved Alaska map data

A polar bear walks across rubble ice in the Alaska portion of the southern Beaufort Sea
June 6, 2017

A new study led by the U.S. Geological Survey and the University of Wyoming found that increased westward ice drift in the Beaufort and Chukchi seas requires polar bears to expend more energy walking eastward on a faster moving “treadmill” of sea ice.  

Sea otter in kelp
May 2, 2017

Thanks to a quarter-century of research and monitoring, scientists now know how different wildlife species were injured by the 1989 Exxon Valdez oil spill and how long it took for populations to recover.

A gas plume arising from Augustine Volcano during it's eruptive phase 2005-06.
April 28, 2017

Which U.S. State or territory has more large earthquakes than the rest of the United States combined?

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