Unified Interior Regions

Alaska

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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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News

Date published: January 23, 2020

USGS Releases Estimate of Conventional Oil and Gas in Alaska Central North Slope

USGS continues its estimates of technically recoverable oil and gas in Alaska's North Slope.

Date published: December 31, 2019

The Challenges of Arctic Fieldwork

On a far-away island along Alaska’s North Slope coast, conducting fieldwork can be challenging.

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Brownlow Point, Alaska Shoreline position
Date Published: May 15, 2021
Status: Active

Alaska North Slope LiDAR

High-resolution light detection and ranging (lidar) elevation data were acquired along the north coast of Alaska between 2009 and 2012. The lidar acquisition, from Icy Cape, Alaska to the United States/Canadian border, comprised approximately 11,000 km2. The airborne lidar data were acquired in support of the U.S. Geological Survey...

Image: Pacific Loon (Gavia pacifica)
Date Published: February 20, 2020
Status: Active

Tracking Data for Pacific Loons (Gavia pacifica)

Available here are tracking data of Pacific Loons, a species that breeds throughout much of Alaska and winters throughout the Pacific Ocean basin, along the costs of East Asia and the U.S.  These data were collected to better understand timing of spring arrival, fall departure, and habitat use patterns on the North Slope of Alaska.

Aerial photograph looking at an eroding bluff on an arctic island with ponded water, green grass, and dying grass.
Date Published: February 14, 2020
Status: Active

Climate impacts to Arctic coasts

The Arctic region is warming faster than anywhere else in the nation. Understanding the rates and causes of coastal change in Alaska is needed to identify and mitigate hazards that might affect people and animals that call Alaska home.

NPPSD V3 Map showing sum of area sampled 2013-2019
Date Published: February 10, 2020
Status: Active

NPPSD Sampling Effort Maps

Maps showing the extent of sampling done and entered into the North Pacific Pelagic Seabird Database (NPPSD).

View of a coastline from a camera that changes every half hour, with calm waters and tundra in foreground.
Date Published: January 30, 2020
Status: Active

Using Video Imagery to Study Wave Dynamics: Unalakleet

Two video cameras overlook the coast from atop a windmill tower in Unalakleet, Alaska where they look westward over Norton Sound.

A building after an earthquake has crumbled the roof and brick walls, the interior is now visible.
Date Published: January 30, 2020
Status: Active

U.S. West Coast and Alaska Marine Geohazards

Marine geohazards are sudden and extreme events beneath the ocean that threaten coastal populations. Such underwater hazards include earthquakes, volcanic eruptions, landslides, and tsunamis.

Devastating earthquakes in Japan (2011) and Chile (2010) that spawned pan-oceanic tsunamis sent a sobering reminder that U.S. coastlines are also vulnerable to natural disasters that originate in...

Map illustration showing fault lines and direction of tectonic plate movement along a stretch of the Alaskan coastline.
Date Published: January 30, 2020
Status: Active

Earthquake Hazards in Southeastern Alaska

Over the last 100 years, the Queen Charlotte-Fairweather fault system has produced large-magnitude earthquakes affecting both Canada and the U.S. To fill in missing details about its offshore location and structure, USGS uses sophisticated techniques to truly understand the fault’s hazard potential.

Contacts: Danny Brothers
Tundra Swan swimming on a lake in northern Alaska
Date Published: January 22, 2020
Status: Active

Tracking Data for Tundra Swans (Cygnus columbianus)

Available here are tracking data of Tundra Swans, a species that nests in coastal areas throughout Alaska and winters across a broad area of North America from the Pacific to Atlantic coasts. These data were collected to better understand the timing and patterns of migratory movements and seasonal use of habitats in breeding, wintering, and migratory areas of North America.

Animated plot of migration tracks for adult Snow Geese in the Western Arctic Population
Date Published: January 21, 2020
Status: Active

Ecosystems Analytics

The Ecosystems Analytics group uses novel and cutting edge statistical, mapping, and graphical methods to conduct research on a variety of taxa.  Our overarching goal is to help inform wildlife and land management decisions through assisting partners with designing monitoring programs, analyzing existing data, and developing new research projects.  Our focus often involves modeling wildlife...

Yellow-billed Loon on a lake in the northern area of Alaska.
Date Published: December 3, 2019
Status: Active

Tracking Data for Yellow-billed Loons (Gavia adamsii)

Available here are tracking data of Yellow-billed loons, a species that breeds in coastal areas of western and northern Alaska and adjacent regions of Russia and Canada.  This species 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

2018 Alaska Assessment Map
Date Published: November 29, 2019
Status: Active

Assessment of Gas Hydrate Resources in the North Slope of Alaska, 2018

The U.S. Geological Survey (USGS) has updated the previous 2008 assessment of undiscovered, technically recoverable gas hydrate resources beneath the North Slope of Alaska.  This new 2018 assessment again indicates the existence of technically recoverable gas hydrate resources―that is, resources that can be discovered, developed, and produced using current technology.  Using a geology-based...

Alaska Gas Hydrate 2018 Drill Rig
Date Published: November 27, 2019
Status: Active

Alaska North Slope 2018 Hydrate 01 Stratigraphic Test Well

The National Energy Technology Laboratory (NETL), the Japan Oil, Gas and Metals National Corporation (JOGMEC), and the U.S. Geological Survey (USGS) are leading an effort to conduct an extended gas hydrate production test in northern Alaska.

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Many types of small fish laid out on the table for counting
February 14, 2020

These data consist of larval (< 60 mm) and age-1+ (> 60 mm) Capelin CPUE (Catch per unit effort) from various catch efforts throughout the Gulf of Alaska (GOA) from 1996 – 2017. The dataset contains the following information: fishing gear type, date, time, catch location (latitude and longitude), tow distance, number of capelin caught, and CPUE for

Layson Albatross flying
February 11, 2020

The North Pacific Pelagic Seabird Database (NPPSD) was created in 2005 to consolidate data on the oceanic distribution of marine bird species in the North Pacific. Most of these data were collected using at-sea strip-transect surveys within defined areas and at known locations. The NPPSD also contains observations of other bird species and marine mammals. The original NPPSD combined data from

A polar bear den
January 27, 2020

This data reports on the approximate locations and methods of discovery of 530 polar bear (Ursus maritimus) maternal dens observed in the Beaufort and Chukchi seas and neighboring areas between 1910 and 2018, and archived partly by the U.S. Geological Survey, Alaska Science Center, and partly by the U.S. Fish and Wildlife Service, Marine Mammals Management, in Anchorage, Alaska. D

Female and two cubs polar bears on the sea ice
January 23, 2020

This dataset includes accelerometer data collected on collars deployed on female polar bears in the southern Beaufort Sea from 2009-2016. The accelerometer was built in to collars by Telonics, Inc. and provides a single activity value of the number of seconds active per time interval of data collection. Data were collected every 15-30 minutes. GPS and ARGOs locations collected via collars wer

Tundra swan on the Colville River Delta
January 22, 2020

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 50 satellite transmitters attached to Tundra Swans on their breeding range in arctic and western Alaska, 2008. The raw data were processed to accomplish two goals: flag implausible location estimates and decode raw s

Tundra swan on the Colville River Delta
January 22, 2020

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 50 satellite transmitters attached to Tundra Swans on their breeding range in arctic and western Alaska, 2008. Five data files are included in the "rawData" folder of this data package. Two data files (with identical c

Mallard Duck swimming
January 14, 2020

This dataset is three tables with details of samples and aliquots of waterfowl feces deposited in filtered surface water collected from an urban waterbody in Anchorage, Alaska in 2018-2019. Sample vials were submerged underwater in the same waterbody from which the samples were collected and the samples were tested for the presence and viability of influenza A virus. Temperature data and water

Freshly deceased Common Murre carcass recovered
January 10, 2020

These data are in two tables relating to a die-off of Common Murres in the north Pacific, 2015-2016. The tables provide: 1) beach survey locations, date, time, distance surveyed (kilometers), and number of Common Murre carcasses observed during surveys conducted along the coastline of Alaska to document the 2015-2016 die-off of Common Murres coincident with the North Pacific mar

Earth MRI - Western Alaska Range
January 1, 2020

This data release contains 3 data sets, U-Pb isotopic data and associated
ages of detrital zircon grains for 27 sedimentary rocks, whole rock major
and trace-element geochemistry for 15 igneous or phosphatic
rock samples, and whole rock Sr, Nd, and Pb isotopic data for 6 igneous
rock samples. The samples were collected from multiple localities across
Alaska as part of geologic

Map illustration of a continental coast shows where data was collected.
December 27, 2019

USGS is conducting an analysis of historical shoreline changes along the open-ocean sandy shores of the conterminous United States and parts of Hawaii, Alaska, and the Great Lakes.

A Northern Fulmar attends its nest on Suklik Island, Alaska
December 20, 2019

This data set is comprised of one table with sampling information and allele sizes for 69 individual Northern Fulmars (Fulmarus glacialis) from Chagulak Island, Alaska and Hafnarey Island, Iceland. Fulmar allele sizes are provided for 10 previously published and 26 novel microsatellite loci. Additionally, allele sizes for the 26 microsatellite loci developed in this study are included f

placeholder for data files
December 20, 2019

This data release includes tabular surveyed and interpolated elevation data, the processed computational mesh, and model output data used in scour evaluations. The methods of deriving these datasets and using them to calculate scour are described in the associated Scientific Investigations Report "Scour evaluations and conditions at selected bridge sites in Alaska, 2016-2017”. Thi

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The Alaska Geologic Map shows the generalized geology of the state, each color representing a different type or age of rock
December 5, 2017

This is an interactive version of the Alaska geologic map database which allows a user to view and access many features of the database and map through a standard web browser. In other words, there is no need for or knowledge of specialized GIS software.

Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

Alaska Topographic Map Contours on Glacier
March 10, 2016

New US Topo maps for Alaska are being produced statewide, with digital 7.5 minute 1:25,000-scale maps providing a comprehensive update to the 15-minute 1:63,360-scale printed maps produced nearly fifty years ago. You can view a status map showing where the new maps are available, and link to a site to download the maps.

Image shows a road split due to earthquake damage
March 27, 2014

On March 27, 1964 the largest recorded earthquake in U.S. history struck southcentral Alaska.  Click on the photos or the numbers to take a tour.

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Year Published: 2020

USGS near-real-time products-and their use-for the 2018 Anchorage earthquake

In the minutes to hours after a major earthquake, such as the recent 2018 Mw">Mw 7.1 Anchorage event, the U.S. Geological Survey (USGS) produces a suite of interconnected earthquake products that provides diverse information ranging from basic earthquake source parameters to loss estimates. The 2018 Anchorage earthquake is the first...

Thompson, Eric M.; McBride, Sara; Hayes, Gavin P.; Allstadt, Kate; Wald, Lisa; Wald, David J.; Knudsen, Keith L.; Worden, Charles; Marano, Kristin; Jibson, Randall W.; Grant, Alex

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Year Published: 2020

Ground-motion amplification in Cook Inlet region, Alaska from intermediate-depth earthquakes, including the 2018 MW=7.1 Anchorage earthquake

We measure pseudospectral and peak ground motions from 44 intermediate‐depth Mw&#x2265;4.9">Mw≥4.9 earthquakes in the Cook Inlet region of southern Alaska, including those from the 2018 Mw">Mw 7.1 earthquake near Anchorage, to identify regional amplification features (⁠0.1&#x2013;5&#x2009;&#x2009;s">0.1...

Moschetti, Morgan P.; Thompson, Eric M.; Rekoske, John; Hearne, Mike; Powers, Peter M.; McNamara, Daniel E.; Tape, Carl

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Year Published: 2020

Plate boundary localization, slip-rates and rupture segmentation of the Queen Charlotte Fault based on submarine tectonic geomorphology

Linking fault behavior over many earthquake cycles to individual earthquake behavior is a primary goal in tectonic geomorphology, particularly across an entire plate boundary. Here, we examine the 1150-km-long, right-lateral Queen Charlotte-Fairweather fault system using comprehensive multibeam bathymetry data acquired along the Queen Charlotte...

Brothers, Daniel; Miller, Nathaniel C.; Vaughn Barrie; Haeussler, Peter; H. Gary Greene; Andrews, Brian D.; Olaf Zielke; Dartnell, Peter

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Year Published: 2019

The August 2018 Kaktovik earthquakes: Active tectonics in northeastern Alaska revealed With InSAR and seismology

The largest earthquakes recorded in northern Alaska (Mw 6.4 and Mw 6.0) occurred ~6 hours apart on August 12, 2018 in the northeastern Brooks Range. The earthquakes were captured by Sentinel-1 InSAR satellites and Earthscope Transportable Array seismic data, giving insight into the little-known active tectonic processes of Arctic Alaska, obscured...

Gaudreau, E.; Nissen, E.K.; Bergman, Eric A.; Benz, Harley M.; Tan, F.; Karasözen, E.

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Year Published: 2019

A ship's ballasting history as an indicator of foraminiferal invasion potential--An example from Prince William Sound, Alaska, USA

We investigated the potential role of ballast sediment from coastal and transoceanic oil tankers arriving and de-ballasting in Port Valdez as a vector for the introduction of invasive benthic foraminifera in Prince William Sound, Alaska. Forty-one ballast sediment samples were obtained in 1998-1999 from 11 oil tankers that routinely discharged...

McGann, Mary; Ruiz, Gregory M.; Hines, Anson H.; Smith, George D.

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Year Published: 2019

The 30 November 2018 Mw7.1 Anchorage Earthquake

The Mw">Mw 7.1 47 km deep earthquake that occurred on 30 November 2018 had deep societal impacts across southcentral Alaska and exhibited phenomena of broad scientific interest. We document observations that point to future directions of research and hazard mitigation. The rupture mechanism, aftershocks, and deformation of the...

West, Michael E.; Bender, Adrian; Gardine, Matthew; Gardine, Lea; Gately, Kara; Haeussler, Peter; Hassan, Wael; Meyer, Franz; Richards, Cole; Ruppert, Natalia; Tape, Carl; Thornley, John; Witter, Robert

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Year Published: 2019

Alaska Geochemical Database Version 3.0 (AGDB3)—Including “Best Value” Data Compilations for Rock, Sediment, Soil, Mineral, and Concentrate Sample Media

The Alaska Geochemical Database Version 3.0 (AGDB3) contains new geochemical data compilations in which each geologic material sample has one “best value” determination for each analyzed species, greatly improving speed and efficiency of use. Like the Alaska Geochemical Database Version 2.0 before it, the AGDB3 was created and designed to compile...

Granitto, Matthew; Wang, Bronwen; Shew, Nora B.; Karl, Susan M.; Labay, Keith A.; Werdon, Melanie B.; Seitz, Susan S.; Hoppe, John E.
Granitto, M., Wang, B., Shew, N.B., Karl, S.M., Labay, K.A., Werdon, M.B., Seitz, S.S., and Hoppe, J.E., 2019, Alaska Geochemical Database Version 3.0 (AGDB3)—Including “best value” data compilations for rock, sediment, soil, mineral, and concentrate sample media: U.S. Geological Survey Data Series 1117, 33 p., https://doi.org/10.3133/ds1117.

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Year Published: 2019

Catalog of earthquake parameters and description of seismograph and infrasound stations at Alaskan volcanoes—January 1, 2013, through December 31, 2017

Between January 1, 2013, and December 31, 2017, the Alaska Volcano Observatory (AVO) located a total of 28,172 earthquakes at volcanoes in Alaska. The annual totals are 3,840, 5,819, 5,297, 6,151, and 7,065 earthquakes for the years 2013 through 2017, respectively. This represents an average of 5,634 earthquakes per year, which is comparable to...

Dixon, James P.; Stihler, Scott D.; Haney, Matthew M.; Lyons, John J.; Ketner, Dane M.; Mulliken, Katherine M.; Parker, Thomas; Power, John A.
Dixon, J.P., Stihler S.D., Haney, M.M., Lyons, J.J., Ketner, D.M., Mulliken, K.M., Parker, T., and Power, J.A., 2019, Catalog of earthquake parameters and description of seismograph and infrasound stations at Alaskan volcanoes—January 1, 2013, through December 31, 2017: U.S. Geological Survey Data Series 1115, 92 p., https://doi.org/10.3133/ds1115.

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Year Published: 2019

An initial assessment of areas where landslides could enter the West Arm of Glacier Bay, Alaska and implications for tsunami hazards

Tsunamis generated by landslides in Glacier Bay are uncommon, but have potential to be extraordinarily destructive when they occur. This article identifies areas that are susceptible to landslides that could generate tsunamis and discusses approaches to characterize hazard and risk from these events.

Coe, Jeffrey A.; Schmitt, Robert G.; Bessette-Kirton, Erin

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Year Published: 2019

Crustal architecture beneath the southern Midcontinent (USA) and controls on Mesoproterozoic iron-oxide mineralization from 3D geophysical models

Several types of critical mineral-bearing ore deposits in the southern Midcontinent region of the U.S. are hosted in Mesoproterozoic igneous rocks largely concealed beneath Paleozoic cover. Discerning the architecture of igneous intrusions and volcanic centers in the crust is fundamental to understanding the geologic evolution of this vast region...

McCafferty, Anne E.; Phillips, Jeffrey D.; Hofstra, Albert H.; Day, Warren C.
McCafferty, A.E., Phillips, J.D., Hofstra, A.H., and Day, W.C., 2019, Crustal architecture beneath the southern Midcontinent (USA) and controls on Mesoproterozoic iron-oxide mineralization from 3D geophysical models: Ore Geology Reviews, v. 111, 21 p.

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Year Published: 2019

Investigating lake-area dynamics across a permafrost-thaw spectrum using airborne electromagnetic surveys and remote sensing time-series data in Yukon Flats, Alaska

Lakes in boreal lowlands cycle carbon and supply an important source of freshwater for wildlife and migratory waterfowl. The abundance and distribution of these lakes are supported, in part, by permafrost distribution, which is subject to change. Relationships between permafrost thaw and lake dynamics remain poorly known in most boreal regions....

Rey, David; Walvoord, Michelle Ann; Minsley, Burke; Rover, Jennifer; Singha, Kamini

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Year Published: 2019

Slope failure and mass transport processes along the Queen Charlotte Fault, southeastern Alaska

The Queen Charlotte Fault defines the Pacific–North America transform plate boundary in western Canada and southeastern Alaska for c. 900 km. The entire length of the fault is submerged along a continental margin dominated by Quaternary glacial processes, yet the geomorphology along the margin has never been systematically examined due to the...

Brothers, Daniel; Andrews, Brian D.; Walton, Maureen A. L.; H. Gary Greene; J. Vaughn Barrie; Miller, Nathaniel C.; ten Brink, Uri S.; East, Amy E.; Haeussler, Peter J.; Kluesner, Jared W.; Conrad, James E.

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A DNA strand illustration
August 6, 2018

Bioinformatics software repository containing python scripts intended for search and download of genetic information obtained from GenBank NCBI genetics data resources in support of developing PCR primers, targeted genetic databases, genetic analyses, and data interpretation. Includes multiple functions to streamline this process.

Sea ice in the Chukchi Sea
July 25, 2017

Daily sea ice imagery and charting benefits logistics and navigational planning in the Alaskan Arctic waters, yet access to these data often requires high bandwidth data access and substantial GIS processing.

USGS
June 20, 2017

Cormack-Jolly-Seber (CJS) mark-recapture models are widely utilized in ecology, providing estimates of vital rates and abundance that are difficult to obtain using other means.

Polar bear still hunting at a seal breathing hole
June 20, 2017

Quantitative fatty acid signature analysis (QFASA; Iverson et al. 2004) has become a common method of estimating diet composition, especially for marine mammals, but the performance of the method has received limited investigation.

multicolored map of Ocean Shores, Washington
April 13, 2017

The Pedestrian Evacuation Analyst is an ArcGIS extension that estimates how long it would take for someone to travel on foot out of a hazardous area that was threatened by a sudden event such as a tsunami, flash flood, or volcanic lahar. It takes into account the elevation changes and the different types of landcover that a person would encounter along the way.

Kasilof coho salmon with radio tag antenna in it's mouth
January 10, 2017

Quantitative fatty acid signature analysis (QFASA) is a method of diet estimation introduced over a decade ago (Iverson et al. 2004). 

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Aerial survey for Black Brant at Izembek Lagoon, Alaska
December 31, 2020

Aerial survey for Black Brant at Izembek Lagoon, Alaska

Example of a photo from the USFWS fall aerial survey for Black Brant at Izembek Lagoon. Inset shows a closer view of four Black Brant (bottom) with a Cackling Goose (top) foraging on eelgrass.  We can use artificial intelligence to automate counting birds in each photo to develop population estimates.

Animated plot of migration tracks for adult Snow Geese in the Western Arctic Population
December 31, 2020

Migration tracks for adult Snow Geese in the Western Arctic Population

Animated plot of migration tracks for adult Snow Geese in the Western Arctic Population, from Fall 2018 to Winter 2019. Each colored dot represents an individual goose. The red polygon on the north slope of Alaska represents the 1002 area of the Arctic National Wildlife Refuge, where these geese briefly stage each fall.  Locations are derived from GPS/GSM collars that were

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Argos Wildlife Tracking Pacific Loon
December 31, 2020

Argos Wildlife Tracking Pacific Loon

Illustrates the where of all Pacific Loons that were tracked using Argos Wildlife Tracking.

Semipalmated Sandpipers with leg bands or leg bands plus flag
December 31, 2020

Semipalmated Sandpipers with leg bands or leg bands plus flag

Semipalmated Sandpipers with A) Leg bands only (no flag), or B) leg bands plus flag From: Leg flags do not affect shorebird nests: https://doi.org/10.1111/jofo.12264

Maps displaying the spatial-temporal variability in the NPPSD 3.0 dataset
February 10, 2020

Maps displaying the spatial-temporal variability in the NPPSD 3.0 data

Maps displaying the spatial-temporal variability in the NPPSD 3.0 dataset

Northen Fulmar flying over water
February 10, 2020

Northern Fulmar flying over water

Northen Fulmar flying over water in the Aleutian Islands

Argos Wildlife Tracking Red-throated Loons
January 30, 2020

Argos Wildlife Tracking Red-throated Loons

Illustrates the where of all Red-throated Loons that were tracked using Argos Wildlife Tracking.

click on image for full description
January 23, 2020

Alaska Central North Slope - January 2020

ALASKA CENTRAL NORTH SLOPE
January 2020

One of the most productive areas in the world for oil remains rich in the resource, according to the latest USGS assessment. This assessment is for undiscovered, technically recoverable oil and gas resources in conventional accumulations.

3.6 Billion Barrels of Oil
Estimate of the undiscovered

...
Attribution: Energy and Minerals
January 10, 2020

Image of the Week - An Aleutian Eruption, Day & Night

The Shishaldin Volcano on the eastern edge of Alaska's Aleutian Island chain erupted with activity in January of 2020. The eruption on the island of Unimak sent an ash cloud nearly 5 miles into the sky on January 7th, sparking ash alerts for aviators, mariners, and residents of nearby communities. Landsat 8 captured both day and night imagery of the event as it happened.

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A satellite image that shows the eruption during the day and the night.
January 7, 2020

An Aleutian Eruption, Day and Night

The Shishaldin Volcano on the eastern edge of Alaska's Aleutian Island chain erupted with activity in January of 2020.

Geologist at Yukon Tanana Uplands Alaska
December 31, 2019

Geologist at Yukon Tanana Uplands Alaska

Geologist at Yukon Tanana Uplands Alaska.  This is part of the Earth MRI project.

Argos Wildlife Tracking of Blue-winged Teals
December 31, 2019

Argos Wildlife Tracking of Blue-winged Teals

Argos Wildlife Tracking of Blue-winged Teals

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A sitting polar bear holds a square tarp in its mouth, seeming to treat it like a toy.
December 31, 2019

On a far-away island along Alaska’s North Slope coast, conducting fieldwork can be challenging.

A bull caribou grazes in autumn at the Lake Clark National Park and Preserve in Alaska
December 18, 2019

Caribou, North America’s wild reindeer, have lives apart from their famous role on Christmas Eve. To learn more about how  these Arctic antler-bearers spend the other 364 days of the year,  we talked to USGS caribou  expert Dr. Layne Adams, who has studied these animals for more than 35 years.

A stream winding through polygonal ground on the Arctic Coastal Plain
December 10, 2019

The USGS Alaska Science Center is now embarking on the next 5-year (FY2020 – 2024) research plan of the Changing Arctic Ecosystems Initiative.

house next to landslide with snowcovered ground
October 25, 2019

"Major landslides triggered by the 1964 magnitude 9.2 Great Alaska earthquake responded to, but were not reactivated by, the magnitude 7.1 Anchorage earthquake that took place  30 November 2018, researchers concluded in a new study published in Seismological Research Letters."

Read full story on SSA website.

Color photo of research team near Faribanks, Alaska
October 15, 2019

In the Arctic, there are lakes where the bubbles will burn.

The bubbles are filled with methane gas. The flammable archaeal belches form as microbes feast on stores of long-frozen organic matter, freed up for decomposition thanks to permafrost thawing somewhere deep beneath the lakebed.

water with snow-covered mountains around
August 22, 2019

A new "Science for Everyone" article summarizes a recent publication about the potential of landslide-triggered tsunamis in Glacier Bay National Park and Preserve.

Spreading the wing of a Marbled godwit
July 31, 2019

Marbled Godwits are common and conspicuous North American shorebirds. So how did such a charismatic species go largely undetected in Alaska until the 1980s?

man inside large boat
April 30, 2019

A rare submarine landslide provides researchers with a reference point for modeling the biggest tsunamis. (EOS article)

Image shows a drill rig on the snow against a twilight sky
April 26, 2019

In the far north of Alaska, near the giant Prudhoe Bay oil field, an international research consortium has been studying the potential of an altogether different energy source.  In late December of 2018, drilling operations confirmed the existence of two high-quality reservoirs that were fully saturated with a potential alternative fuel source: gas hydrate.

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