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: 206
Date published: August 13, 2018
Status: Active

Changing Arctic Ecosystems

The USGS Changing Arctic Ecosystems Initiative will enhance the long-term science foundation needed by the U.S. Department of the Interior and other partners.

Date published: August 10, 2018
Status: Active

Loon Research

Scientists at the USGS Alaska Science Center have conducted research on Alaska’s three loon species since the late 1970s. Loons rely on freshwater lakes for nesting habitat and fish and invertebrates inhabiting lakes and marine ecosystems for food. All three loon species in Alaska occur within the National Petroleum Reserve-Alaska (NPR-A) on Alaska’s northern coast. Research by the USGS is...

Date published: August 8, 2018
Status: Active

Streambed Scour at Bridges in Alaska

Streambed scour is the leading cause of bridge failure in the United States resulting in over 60 percent of all failures. The Alaska Science Center, in cooperation with the Alaska Department of Transportation and Public Facilities and the Alaska Railroad, is researching streambed scour through scour monitoring, hydraulic modeling, and data collection during high flows.  

Date published: August 2, 2018
Status: Active

Detecting Long-term Changes in Forage Fish Populations in Prince William Sound, Alaska

Forage fish are an important node in marine food webs because they link primary and secondary producers with higher trophic levels.

Date published: August 2, 2018
Status: Active

Cook Inlet Seabird and Forage Fish Study

A massive die-off of Common Murres was documented in the Gulf of Alaska (GOA) during the fall and winter of 2015-2016 in association with a record-breaking marine heat wave in the GOA.

Date published: August 1, 2018
Status: Active

Terrestrial Influence on Glacial-Marine Food Webs

Where glaciers meet the sea in the Gulf of Alaska (GOA), they create unique and productive marine habitats. Ringed by the continent’s tallest coastal mountains, 20% of the GOA coastal watershed is covered by glacial ice and the annual freshwater discharge into the GOA from glacial melt is comparable to that of the Mississippi river.

Date published: July 30, 2018
Status: Active

Aleutian Islands Ecosystem Recovery Studies

The Aleutian archipelago is a 2,000 km long chain of volcanically-derived treeless islands stretching from Unimak Island in the east to the Commander Islands in the west.  These volcanic islands support a wide range of species including large numbers of seabirds and marine mammal species, some of which are threatened and endangered, leading to a high level of federal management concern.

Date published: July 20, 2018
Status: Active

USGS Coastal Plain and NPR-A Research Bibliography

Selected Bibliography of USGS Research Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area) and/or the National Petroleum Reserve - Alaska (NPRA)

Compiled as of 12/18/2018

Date published: July 19, 2018
Status: Active

Science Informing the Status and Trends of Migratory Birds

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is...

Date published: July 19, 2018
Status: Active

Science Informing Endangered Species Act Decisions and Recovery Planning

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is...

Date published: July 19, 2018
Status: Active

Science for Oil and Gas Leasing-related Decisions

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is...

Date published: July 11, 2018
Status: Active

Are the USGS Benchmark Glaciers spatially representative? Using geodetic constraints to develop a regional glacier mass balance record- Shad O’Neel

This project will integrate observations collected over a 50-year interval to provide deep insight into long-term patterns of glacier change in Alaska. Results will contribute to a broad range of disciplines from sea level change to fish biology. Work with an enthusiastic, dynamic group to understand the forcing behind the rapid change in the complex Alaska mountain glacier region.

Filter Total Items: 201
Date published: November 8, 2019

Physical, Chemical, and Invertebrate Data from Chipp North Pond Manipulations, North Slope, Alaska, 2013

These data are in three tables relating to a series of ponds, visited weekly over the summer of 2013, in the Chipp River Basin on the Arctic Coastal Plain of northern Alaska. The tables provide: 1) location and description of each of the ponds, 2) physical information on pond characteristics (area, volume, and temperature), water chemistry (electrical conductivity, disso

Date published: October 30, 2019

Water Level, Temperature, and Discharge of Headwater Streams in the Noatak and Kobuk River Basins, Northwest Alaska, 2015 - 2017

This data set includes 15-minute interval data on stream temperature, stage, and discharge from low-order streams in the Noatak and Kobuk River valleys in Northwestern Alaska, collected during the summer months. Several sites in the Agashashok River basin were monitored in 2015 and 2016, and additional sites were added in 2017. The depth of the water and temperature were determined usin

Date published: September 18, 2019

Argos Satellite Tracking Data for Northern Pintails (Anas acuta) - 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 129 satellite transmitters attached to Northern Pintail ducks on their winter range in Japan, 2007-2009. Five data files are included in the "rawData" folder of this data package. Two data files (with identical content

Date published: September 18, 2019

Argos Satellite Tracking Data for Northern Pintails (Anas acuta) - 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 129 satellite transmitters attached to Northern Pintail ducks on their winter range in Japan, 2007-2009. The raw data were processed to accomplish two goals: flag implausible location estimates and decode raw sensor

Date published: September 18, 2019

Argos Satellite Tracking Data for Blue-winged Teal (Anas discors) - 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 42 satellite transmitters attached to Blue-winged Teal ducks on their breeding range in Saskatchewan and Alberta (August 2013) and spring staging areas in Texas and Louisiana (March 2015). Five data files are included

Date published: September 18, 2019

Argos Satellite Tracking Data for Blue-winged Teal (Anas discors) - 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 42 satellite transmitters attached to Blue-winged Teal ducks on their breeding range in Saskatchewan and Alberta (August 2013) and spring staging areas in Texas and Louisiana (March 2015). The raw data were proce

Date published: September 10, 2019

USGS National and Global Oil and Gas Assessment Project-Northern Alaska Province, Gas Hydrate Assessment Unit Boundaries and Assessment Input Data Forms

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas hydrate resources on the north slope of Alaska. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum...

Date published: September 5, 2019

Measurements Used to Determine the Sex of Bristle-thighed Curlews (Numenius tahitiensis)

This data set contains bill and tarsal measurements from 114 Bristle-thighed Curlews, captured on breeding grounds in Alaska, and non-breeding areas in Hawaii and Reitoru atoll, French Polynesia.

Date published: September 5, 2019

U-Pb detrital zircon geochronology of cores and cuttings from selected wells in Arctic Alaska

Select samples were collected from boreholes in Arctic Alaska to determine the U-Pb ages of zircon to determine a maximum depositional age of the geologic units and/or provenance of the zircon in the samples. Samples were collected from the Department of Natural Resources-Alaska Geologic Materials Center in Anchorage Alaska and sent to U.S. Geological Survey-Geology, Geophysics and Geochemist...

Date published: September 5, 2019

Geodetic Data for USGS Benchmark Glaciers: Orthophotos, Digital Elevation Models, and Glacier Boundaries

Since the late 1950s, the USGS has maintained a long-term glacier mass-balance program at three North American glaciers. Measurements began on South Cascade Glacier, WA in 1958, expanding to Gulkana and Wolverine glaciers, AK in 1966, and later Sperry Glacier, MT in 2005. Additional measurements have been made on Lemon Creek Glacier, AK to compliment data collected by the Juneau Ice

Date published: September 4, 2019

Aerial Imagery Captured at Nesting Pacific Black Brant (Branta bernicla nigricans) Colonies on the Yukon-Kuskokwim Delta, Alaska, 1993-2016

This data set contains one table of the habitat classifications from imagery captured during aerial photographic surveys at the five primary Pacific black brant colonies on the Yukon-Kuskokwim Delta in western Alaska from 1993-2016.

Date published: September 1, 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 and integrate geochemical data from Alaska t

Filter Total Items: 136
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Year Published: 2010

Logs and Geologic Data from a Paleoseismic Investigation of the Susitna Glacier fault, Central Alaska Range, Alaska

This report contains field and laboratory data from a paleoseismic study of the Susitna Glacier fault, Alaska. The initial M 7.2 subevent of the November 3, 2002, M 7.9 Denali fault earthquake sequence produced a 48-km-long set of complex fault scarps, folds, and aligned landslides on the previously unknown, north-dipping Susitna Glacier thrust...

Personius, Stephen F.; Crone, Anthony J.; Burns, Patricia A.C.; Beget, James E.; Seitz, Gordon G.; Bemis, Sean P.
Logs and Geologic Data from a Paleoseismic Investigation of the Susitna Glacier fault, Central Alaska Range, Alaska; 2010; SIM; 3114; Personius, Stephen F.; Crone, Anthony J.; Burns, Patricia A.; Beget, James E.; Seitz, Gordon G.; Bemis, Sean P.

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Year Published: 2010

Headwater streams and forest management: does ecoregional context influence logging effects on benthic communities?

Effects of forest management on stream communities have been widely documented, but the role that climate plays in the disturbance outcomes is not understood. In order to determine whether the effect of disturbance from forest management on headwater stream communities varies by climate, we evaluated benthic macroinvertebrate communities in 24...

Medhurst, R. Bruce; Wipfli, Mark S.; Binckley, Chris; Polivka, Karl; Hessburg, Paul F.; Salter, R. Brion
Headwater streams and forest management: Does ecoregional context influence logging effects on benthic communities?; 2010; Article; Journal; Hydrobiologia; Medhurst, R. B.; Wipfli, M. S.; Binckley, C.; Polivka, K.; Hessburg, P. F.; Salter, R. B.

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Year Published: 2010

Linking ecosystems, food webs, and fish production: subsidies in salmonid watersheds

Physical characteristics of riverine habitats, such as large wood abundance, pool geometry and abundance, riparian vegetation cover, and surface flow conditions, have traditionally been thought to constrain fish production in these ecosystems. Conversely, the role of food resources (quantity and quality) in controlling fish production has received...

Wipfli, Mark S.; Baxter, Colden V.
Linking ecosystems, food webs, and fish production: Subsidies in salmonid watersheds; 2010; Article; Journal; Fisheries; Wipfli, M. S.; Baxter, C. V.

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Year Published: 2009

Nitrogen attenuation of terrestrial carbon cycle response to global environmental factors

Nitrogen cycle dynamics have the capacity to attenuate the magnitude of global terrestrial carbon sinks and sources driven by CO2 fertilization and changes in climate. In this study, two versions of the terrestrial carbon and nitrogen cycle components of the Integrated Science Assessment Model (ISAM) are used to evaluate how variation in nitrogen...

Jain, A.A.; Yang, Xiaojuan; Kheshgi, H.; McGuire, A. David; Post, W.; Kicklighter, David W.

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Year Published: 2009

Projected changes in atmospheric heating due to changes in fire disturbance and the snow season in the western Arctic, 2003–2100

In high latitudes, changes in climate impact fire regimes and snow cover duration, altering the surface albedo and the heating of the regional atmosphere. In the western Arctic, under four scenarios of future climate change and future fire regimes (2003–2100), we examined changes in surface albedo and the related changes in regional...

Euskirchen, E.S.; McGuire, A. David; Rupp, T.S.; Chapin, F. S.; Walsh, J.E.

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Year Published: 2009

Maps Showing Seismic Landslide Hazards in Anchorage, Alaska

The devastating landslides that accompanied the great 1964 Alaska earthquake showed that seismically triggered landslides are one of the greatest geologic hazards in Anchorage. Maps quantifying seismic landslide hazards are therefore important for planning, zoning, and emergency-response preparation. The accompanying maps portray seismic landslide...

Jibson, Randall W.; Michael, John A.
Maps Showing Seismic Landslide Hazards in Anchorage, Alaska; 2009; SIM; 3077; Jibson, Randall W.; Michael, John A.

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Year Published: 2009

Does winter region affect spring arrival time and body mass of king eiders in northern Alaska?

Events during the non-breeding season may affect the body condition of migratory birds and influence performance during the following breeding season. Migratory birds nesting in the Arctic often rely on endogenous nutrients for reproductive efforts, and are thus potentially subject to such carry-over effects. We tested whether king eider (...

Powell, Abby N.; Oppel, Steffen

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Year Published: 2008

Challenges in making a seismic hazard map for Alaska and the Aleutians

We present a summary of the data and analyses leading to the revision of the time-independent probabilistic seismic hazard maps of Alaska and the Aleutians. These maps represent a revision of existing maps based on newly obtained data, and reflect best current judgments about methodology and approach. They have been prepared following the...

Freymueller, J.T.; Wesson, R.L.; Boyd, O.S.; Mueller, C.S.; Frankel, A.D.
Challenges in making a seismic hazard map for Alaska and the Aleutians; 2008; Article; Journal; Geophysical Monograph Series: Active Tectonics and Seismic Potential of Alaska; Wesson, R. L.; Boyd, O. S.; Mueller, C. S.; Frankel, A. D.

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Year Published: 2007

Landscape geochemistry near mineralized areas of eastern Alaska: Chapter H in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project

The Pogo lode gold deposit was discovered in eastern Alaska in the early 1990s and provided the opportunity to study elemental distribution and mobility in the natural environment prior to mine development. Studying mineralized systems prior to mining allows us to compare the natural biogeochemical signature in mineralized versus...

Wang, Bronwen; Gough, Larry P.; Wanty, Richard B.; Crock, James G.; Lee, Gregory K.; Day, Warren C.; Vohden, Jim
Landscape geochemistry near mineralized areas of eastern Alaska: Chapter H in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project; 2007; SIR; 2007-5289-H; Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289); Wang, Bronwen; Gough, Larry P.; Wanty, Richard B.; Crock, James G.; Lee, Gregory K.; Day, Warren C.; Vohden, Jim

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Year Published: 2007

Geology and origin of epigenetic lode gold deposits, Tintina Gold Province, Alaska and Yukon: Chapter A in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project

More than 50 million ounces of lode gold resources have been defined in the previous 15 years throughout accreted terranes of interior Alaska and in adjacent continental margin rocks of Yukon. The major deposits in this so-called Tintina Gold Province formed around 105 to 90 million years ago in east-central Alaska and Yukon, and around 70...

Gough, Larry P.; Day, Warren C.; Goldfarb, Richard J.; Marsh, Erin E.; Hart, Craig J.R.; Mair, John L.; Miller, Marti L.; Johnson, Craig
Geology and origin of epigenetic lode gold deposits, Tintina Gold Province, Alaska and Yukon: Chapter A in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project; 2007; SIR; 2007-5289-A; Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289); Goldfarb, Richard J.; Marsh, Erin E.; Hart, Craig J.R.; Mair, John L.; Miller, Marti L.; Johnson, Craig

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Year Published: 2007

Aufeis accumulations in stream bottoms in arctic and subarctic environments as a possible indicator of geologic structure: Chapter F in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project

Thick accumulations of ice, called “aufeis,” form during winter along stream and river valleys in arctic and subarctic regions. In high-gradient alpine streams, aufeis forms mostly as a result of ground-water discharge into the stream channel. The ice occludes this discharge, perturbing the steady-state condition, and causing an incremental...

Gough, Larry P.; Day, Warren C.; Wanty, Richard B.; Wang, Bronwen; Vohden, Jim; Day, Warren C.; Gough, Larry P.
Aufeis accumulations in stream bottoms in arctic and subarctic environments as a possible indicator of geologic structure: Chapter F in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project; 2007; SIR; 2007-5289-F; Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289); Wanty, Richard B.; Wang, Bronwen; Vohden, Jim; Day, Warren C.; Gough, Larry P.

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Year Published: 2006

Hydrography and circulation of ice-marginal lakes at Bering Glacier, Alaska, U.S.A.

An extensive suite of physical oceanographic, remotely sensed, and water quality measurements, collected from 2001 through 2004 in two ice-marginal lakes at Bering Glacier, Alaska-Berg Lake and Vitus Lake-show that each has a unique circulation controlled by their specific physical forcing within the glacial system. Conductivity profiles from Berg...

Josberger, E.G.; Shuchman, R.A.; Meadows, G.A.; Savage, S.; Payne, J.
Hydrography and circulation of ice-marginal lakes at Bering Glacier, Alaska, U.S.A.; 2006; Article; Journal; Arctic, Antarctic, and Alpine Research; Josberger, E. G.; Shuchman, R. A.; Meadows, G. A.; Savage, S.; Payne, J.

Filter Total Items: 1,086
Short-tailed Shearwater carcass on beach in Bristol Bay, Alaska
August 6, 2019

Short-tailed Shearwater carcass washed up in Bristol Bay, Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Short-tailed Shearwater carcasses on beach in Bristol Bay, Alaska
August 6, 2019

Short-tailed Shearwater carcasses on beach in Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Short-tailed Shearwater carcass on beach in Bristol Bay, Alaska
August 6, 2019

Close up of Short-tailed Shearwater carcass in Bristol Bay, Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Short-tailed Shearwater carcasses on beach in Bristol Bay, Alaska
August 6, 2019

Short-tailed Shearwater carcasses in Bristol Bay, Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Short-tailed Shearwater carcass on beach in Bristol Bay, Alaska
August 6, 2019

Emaciated Short-tailed Shearwater carcass on beach in Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Short-tailed Shearwater carcasses and debris on beach in Bristol Bay
August 6, 2019

Short-tailed Shearwater carcasses and debris on beach in Bristol Bay

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Short-tailed Shearwater carcass on beach in Bristol Bay, Alaska
August 6, 2019

Short-tailed Shearwater carcass on rocky beach in Bristol Bay, Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019.

Short-tailed Shearwater carcass on beach in Bristol Bay, Alaska
August 6, 2019

Short-tailed Shearwater carcass near beach shoreline in Bristol Bay

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019.

Short-tailed Shearwater carcass on beach in Bristol Bay, Alaska
August 6, 2019

Emaciated Short-tailed Shearwater carcass and debris on beach, Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019.

Broad whitefish (Coregonus nasus) captured along the Beaufort Sea
July 30, 2019

Broad whitefish (Coregonus nasus) captured along the Beaufort Sea

Broad whitefish (Coregonus nasus) captured along the Beaufort Sea coastline in Alaska. Broad whitefish are part of subsistence fisheries in Alaska.

Humpback whitefish (Coregonus pidschian) captured along the Beaufort Sea coastline in Alaska.
July 30, 2019

Humpback whitefish (Coregonus pidschian) captured along Beaufort Sea

Humpback whitefish (Coregonus pidschian) captured along the Beaufort Sea coastline in Alaska. Humpback whitefish are part of subsistence fisheries in Alaska.

Least cisco (Coregonus sardinella) captured along the Beaufort Sea coastline in Alaska.
July 30, 2019

Least cisco (Coregonus sardinella) captured along the Beaufort Sea

Least cisco (Coregonus sardinella) captured along the Beaufort Sea coastline in Alaska. Least cisco are part of subsistence fisheries in Alaska.

Filter Total Items: 280
Current probability of near-surface permafrost in Alaska
November 30, 2015

Using statistically modeled maps drawn from satellite data and other sources, U.S. Geological Survey scientists have projected that the near-surface permafrost that presently underlies 38 percent of boreal and arctic Alaska would be reduced by 16 to 24 percent by the end of the 21st century under widely accepted climate scenarios.

Planned US Topo map production schedule for the next three- year revision cycle
November 19, 2015

With the release of new US Topo maps for Illinois and South Dakota, the USGS has completed the second, three-year cycle of revising and updating electronic US Topo quadrangles. This means that since late 2009, the USGS has published nearly every map in the conterminous U.S., twice.

Thermokarst
November 12, 2015

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.

USGS science for a changing world logo
October 19, 2015

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.

Image: Repairing Seismic Stations in Alaska
October 15, 2015

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.

Image: Blueberry
October 6, 2015

The U.S. Geological Survey today announced the publication of a new study examining how Alaska’s tribal environmental managers and local observer networks view statewide trends in wild berry harvests.

Image: Severe Coastal Erosion During an El Niño Storm
September 21, 2015

SANTA CRUZ, Calif. — The projected upsurge of severe El Niño and La Niña events will cause an increase in storm events leading to extreme coastal flooding and erosion in populated regions across the Pacific Ocean, according to a multi-agency study published today in Nature Geoscience.

USGS science for a changing world logo
September 10, 2015

MENLO PARK, Calif. — Some of the inner workings of Earth’s subduction zones and their “megathrust” faults are revealed in a paper published today in the journal “Science.” U.S. Geological Survey scientist Jeanne Hardebeck calculated the frictional strength of subduction zone faults worldwide, and the stresses they are under.

Image: Valley of Ten Thousand Smokes, Alaska
September 3, 2015

Two community events about monitoring old volcanic ash resuspended by high winds are scheduled next week in the City of Kodiak and in Larsen Bay, Alaska.

Probing the snow pack at the highest point in North America
September 2, 2015

A new, official height for Denali has been measured at 20,310 feet, just 10 feet less than the previous elevation of 20,320 feet which was established using 1950’s era technology.

collage of scientists conducting science related to each mission are
August 10, 2015

ANCHORAGE, Alaska — In the 20th century, Baranof Island in Southeastern Alaska has drawn attention for its gold, chrome and nickel deposits, timber industry, potential activity of the dormant Mount Edgecumbe volcano, and for numerous commercially developed hot springs.