Unified Interior Regions

Hawaii

The Pacific Region has nine USGS Science Centers in California, Nevada, and Hawaii. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

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Filter Total Items: 68
Date published: February 13, 2020
Status: Active

Avian Malaria Genomic Research Project

Habitat destruction, invasive plants, non-native predators and competitors, and introduced diseases have decimated the diverse, endemic native forest bird community of Hawai‘i. In particular, avian malaria (Plasmodium relictum), which is transmitted by the introduced Culex quinquefasciatus mosquito, has caused dramatic declines and extinctions in many native birds. Fortunately, Cx....

Date published: December 19, 2019
Status: Completed

U.S. Seismic Hazard Maps – Hawaii

Seismic hazard maps for Hawaii.

Date published: November 8, 2019
Status: Active

Modeling invasion risk and impacts to inform management responses - Helen Sofaer

Where are invasive species likely to be introduced or become abundant? How should managers respond? On Hawaii and other Pacific Islands numerous invasive species have altered ecosystems, and new species continue to be introduced. Statistical analyses can characterize risk and inform response strategies.

Date published: November 8, 2019
Status: Active

Modeling invasion risk and impacts to inform management responses - Helen Sofaer

Where are invasive species likely to be introduced or become abundant? How should managers respond? On Hawaii and other Pacific Islands numerous invasive species have altered ecosystems, and new species continue to be introduced. Statistical analyses can characterize risk and inform response strategies.

Date published: October 28, 2019
Status: Completed

Update of the Hawaii Seismic Hazard Model Workshop #1

Wednesday, September 18, 2019
Honolulu, HI
University of Hawaii at Manoa

Date published: September 10, 2019
Status: Completed

Circulation and Sediment, Nutrient, Contaminant, and Larval Dynamics on Reefs

The overall objective of this research effort is to better understand how circulation and sediment processes impact coral reefs.

Date published: June 26, 2019
Status: Active

Information by Region-Hawaii

  

Date published: March 28, 2019
Status: Active

Sea Level and Storm Hazards: Past and Present

Sea level and Storm Hazards: Past and Present is a multidisciplinary study of past changes in sea level. Prehistoric shorelines can be used as a baseline for current and future sea level changes under warmer-than-present climate. Emphasis is placed on looking at sea levels during warm periods of the last 500,000 years as well as how base level changes increase the risk of coastal inundation...

Date published: February 19, 2019
Status: Active

Risk Analysis of Invasive Freshwater Fishes in Hawaii and Micronesia

Invasive species threaten biodiversity around the world, especially on islands. USGS scientists are helping to identify fish species that have the greatest potential to invade the fresh waters of Microneisa. 

Date published: November 29, 2018
Status: Active

Webinar: Assessing the Impact of Future Climate and Introduced Species on Hawaiʻi's Aquatic Ecosystems

View this webinar to learn how a warming climate will have fundamental impacts on freshwater, a critical driver of tropical island ecosystems.

Contacts: Yin-Phan Tsang, Hannah Clilverd
Date published: November 5, 2018
Status: Completed

Coral Reef Facts

These facts about coral reefs are presented in conjunction with the USGS Coral Reef Project.

Date published: June 26, 2018
Status: Active

Monitoring Bird and Rat Behavior to Improve Invasive Species Management

Introduced rats are notorious predators of birds and their nests worldwide, but especially on remote islands. Rats (Rattus exulans) first arrived in Hawai‘i with Polynesian colonists about 1,000 years ago, resulting in deleterious consequences for native birds and ecosystems. Since Western contact in 1778, two additional rat species have become established in Hawai‘i, including the highly...

Filter Total Items: 89
Date published: February 14, 2019

Coral cover and health determined from seafloor photographs and diver observations, West Hawai'i, 2010-2011

The data described here were collected as part of a larger study to examine habitat conditions and coral health with respect to exposure to submarine groundwater discharge (SGD) and urban land uses.

Date published: January 1, 2019

Radiocarbon data from coastal wetlands on the Hawaiian islands of Kaua'i, O'ahu, and Hawai'i

This portion of the data release presents radiocarbon age data from 66 samples collected from Anahola Valley (Kaua'i), Kahana Valley (O'ahu), and Pololu Valley (Hawai'i). Sample ages were determined by the National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility. The data are provided in a comma-delimited spreadsheet (.csv).

Date published: January 1, 2019

Near-shore seawater-column estimates of groundwater advection rate, Makua, Kauai, USA, August 2016

In-situ near-shore seawater measurements of dissolved radon, conductivity, and water level were used to determine the advection rate of groundwater onto the fringing reef off Makua, HI, USA.

Date published: January 1, 2019

Coral bleaching data by site, West Hawaii, 2010-2011

Observations of bleached coral were documented by scuba divers along pre-determined transects and are presented here in comma-separated format. Included in the table are coral species observed, colony size, size of bleached area on colony, and seawater temperature.

Date published: January 1, 2019

Seafloor photographs and location data, West Hawaii, 2010-2011

Seafloor photographs were collected by SCUBA divers along pre-determined transects using an underwater digital camera following benthic survey protocols developed by the National Park Service (NPS) at Kaloko-Honokohau National Historical Park (Marrack and others, 2014; Weijerman and others, 2014) and modeled after the U.S. Geological Survey (USGS) and NPS coral reef survey proto

Date published: January 1, 2019

Projected flooding extents and depths based on 10-, 50-, 100-, and 500-year wave-energy return periods, with and without coral reefs, for the States of Hawaii and Florida, the Territories of Guam, American Samoa, Puerto Rico, and the U.S. Virgin Islands,

This data release provides flooding extent polygons (flood masks) and depth values (flood points) based on wave-driven total water levels for 22 locations within the States of Hawaii and Florida, the Territories of Guam, American Samoa, Puerto Rico, and the U.S. Virgin Islands, and the Commonwealth of the Northern Mariana Islands. For each of the 22 locations there are eight ass

Date published: January 1, 2019

Dynamically downscaled future wave projections from SWAN model results for the main Hawaiian Islands

Projected wave climate trends from WAVEWATCH3 model output were used as input for nearshore wave models (for example, SWAN) for the main Hawaiian Islands to derive data and statistical measures (mean and top 5 percent values) of wave height, wave period, and wave direction for the recent past (1996-2005) and future projections (2026-2045 and 2085-2100).
Three-hourly global

Date published: January 1, 2019

Conductivity, temperature, and depth (CTD) data from nearshore coral reef locations along the west coast of Hawaii Island (2010-2014)

Conductivity-Temperature-Depth (CTD) profile data were collected along transects across study areas of west and east Hawaii Island between 2010 and 2014. Measurements were made over a range of tide and weather conditions and help characterize the spatial extent and variability in estuarine conditions across the reef when grouped by 1 to 2-hour survey period or by season. Sites of cold and war...

Date published: January 1, 2019

Water temperature time-series data from nearshore coral reef and anchialine pool locations along the west coast of Hawaii Island (2010-2013)

Time-series data of water temperature were collected at 33 locations along the west coast of the Island of Hawaii, including within Kaloko-Honokohau National Historical Park (KAHO), and Puu o Honaunau National Historical Park (PUHO) between 2010 and 2013 in nearshore coral reef and anchialine pool settings. Temperature sensors were attached to fossil limestone, rock or dead coral wi

Date published: January 1, 2019

Water level, temperature, and salinity time-series data from nearshore coral reef locations along the west coast of Hawaii Island (2010-2011)

Time-series data of water level, water temperature, and salinity were collected at 10 locations along west Hawaii Island between 2010 and 2011 in nearshore coral reef settings. Conductivity-temperature-depth sensors were attached to fossil limestone, rock, or dead coral within otherwise healthy coral reef settings spanning water depths of 8 to 23 ft. Continuous measurements were made ever

Date published: January 1, 2019

Sediment grain-size distributions of three carbonate sand layers in Anahola Valley, Kaua'i, Hawai'i

This portion of the data release presents sediment grain-size data from samples collected from Anahola Valley, Kaua`i, Hawai`i in November, 2015 (USGS Field Activity 2015-671-FA). 63 sand and mud samples were taken from sediment cores that were collected using a ‘Russian’ corer (a hand-held, side-filling peat auger) from two site locations. Site locations were

Date published: January 1, 2019

Projected flood extent polygons and flood depth points based on 10-, 50-, 100-, and 500-year wave-energy return periods, with and without coral reefs, for the State of Hawaii (the islands of Hawaii, Kahoolawe, Kauai, Lanai, Maui, Molokai, Niihau, and Oahu

This part of the data release presents projected flooding extent polygon (flood masks) and flooding depth points (flood points) shapefiles based on wave-driven total water levels for the State of Hawaii (the islands of Hawaii, Kahoolawe, Kauai, Lanai, Maui, Molokai, Niihau, and Oahu). For each island there are 8 associated flood mask and flood depth shapefiles: one for

Filter Total Items: 366
Color map of lava flow response times
April 16, 2021

March 10, 2021—Mauna Loa eruption response times over the past 200 years

Color interferogram of volcano summit
April 8, 2021

This image of the summit of Mauna Loa Volcano is derived from satellite-based interferometric synthetic aperture radar (InSAR) and is called an interferogram. 

Color map of lava lake at volcano summit
April 6, 2021

April 5, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

Color map of lava lake at volcano summit
March 29, 2021

 

March 29, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

Color map of lava lake temperature
March 28, 2021

March 26, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery

Color map of lava lake at volcano summit
March 12, 2021

March 12, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

Color animated gif of lava lake rise
March 9, 2021

ANIMATED GIF: This animated image file (GIF) includes a series of thermal maps—ranging from daily to several weeks apart—made from helicopter overflight thermal imagery of Halema‘uma‘u crater, Kīlauea summit.

Maps showing lava lake growth
March 8, 2021

HVO uses regular Kīlauea summit helicopter overflights of Halema‘uma‘u crater to create digital elevation models (DEMs) of the crater.

Color map of lava lake depth
March 8, 2021

Data from a Kīlauea summit helicopter overflight on March 4th allowed for the calculation of the depth of the lava in Halema‘uma‘u crater. 

March 5, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera
March 5, 2021

March 5, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

A helicopter overflight on March 4, 2021, allowed for aerial visual and thermal imagery to be collected of the eruption
March 5, 2021

March 4, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery

Color map of lava lake and volcano summit
February 26, 2021

 

February 26, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

Filter Total Items: 116
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Year Published: 2018

Spatially distributed groundwater recharge estimated using a water-budget model for the Island of Maui, Hawai`i, 1978–2007

Demand for freshwater on the Island of Maui is expected to grow. To evaluate the availability of fresh groundwater, estimates of groundwater recharge are needed. A water-budget model with a daily computation interval was developed and used to estimate the spatial distribution of recharge on Maui for average climate conditions (1978–2007 rainfall...

Johnson, Adam G.; Engott, John A.; Bassiouni, Maoya; Rotzoll, Kolja
Johnson, A.G., Engott, J.A., Bassiouni, Maoya, and Rotzoll, Kolja, 2018, Spatially distributed groundwater recharge estimated using a water-budget model for the Island of Maui, Hawai`i, 1978–2007 (ver. 2.0, February 2018): U.S. Geological Survey Scientific Investigations Report 2014–5168, 53 p., https://doi.org/10.3133/sir20145168.

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Year Published: 2017

Rigorously valuing the role of coral reefs in coastal protection: An example from Maui, Hawaii, U.S.A.

The degradation of coastal habitats, particularly coral reefs, raises risks by exposing communities to flooding hazards. The protective services of these natural defenses are not assessed in the same rigorous, economic terms as artificial defenses such as seawalls, and therefore often not considered in decision-making. Here we present a new...

Storlazzi, Curt D.; Reguero, Borja G.; Lowe, Erik; Shope, James B.; Gibbs, Ann E.; Beck, Mike; Nickel, Barry A.
Storlazzi, C.D., Reguero, B., Lowe, E., Shope, J.B., Gibbs, A.E., Beck, M.W., and Nickel, B., 2017. “Rigorously valuing the role of coral reefs in coastal protection: An example from Maui, Hawaii, U.S.A.” Coastal Dynamics 2017, p. 665-674.

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Year Published: 2017

Measuring surface-water loss in Honouliuli Stream near the ‘Ewa Shaft, O‘ahu, Hawai‘i

The Honolulu Board of Water Supply is currently concerned with the possibility of bacteria in the pumped water of the ‘Ewa Shaft (State well 3-2202-21). Groundwater from the ‘Ewa Shaft could potentially be used to meet future potable water needs in the ‘Ewa area on the island of O‘ahu. The source of the bacteria in the pumped water is unknown,...

Rosa, Sarah N.
Rosa, S.N., 2017, Measuring surface-water loss in Honouliuli Stream near the ‘Ewa Shaft, O‘ahu, Hawai‘i: U.S. Geological Survey Scientific Investigations Report 2017–5042, 14 p., https://doi.org/10.3133/sir20175042.

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Year Published: 2017

Pufferfish mortality associated with novel polar marine toxins in Hawaii

Fish die-offs are important signals in tropical marine ecosystems. In 2010, a mass mortality of pufferfish in Hawaii (USA) was dominated by Arothron hispidus showing aberrant neurological behaviors. Using pathology, toxinology, and field surveys, we implicated a series of novel, polar, marine toxins as a likely cause of this mass mortality. Our...

Work, Thierry M.; Moeller, Perer D. R.; Beauchesne, Kevin R.; Dagenais, Julie; Breeden, Renee; Rameyer, Robert; Walsh, Willliam A.; Abecassis, Melanie; Kobayashi, Donald R.; Conway, Carla M.; Winton, James

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Year Published: 2017

Spatially distributed groundwater recharge for 2010 land cover estimated using a water-budget model for the Island of O‘ahu, Hawai‘i

Owing mainly to projected population growth, demand for freshwater on the Island of Oʻahu is expected to increase by about 26 percent between 2010 and 2030, according to the City and County of Honolulu. Estimates of groundwater recharge are needed to evaluate the availability of fresh groundwater. For this study, a water-budget model with a daily...

Engott, John A.; Johnson, Adam G.; Bassiouni, Maoya; Izuka, Scot K.; Rotzoll, Kolja
Engott, J.A., Johnson, A.G., Bassiouni, Maoya, Izuka, S.K., and Rotzoll, Kolja, 2017, Spatially distributed groundwater recharge for 2010 land cover estimated using a water-budget model for the Island of O‘ahu, Hawai‘i (ver. 2.0, December 2017): U.S. Geological Survey Scientific Investigations Report 2015–5010, 49 p., https://doi.org/10.3133/sir20155010.

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Year Published: 2016

Panel regressions to estimate low-flow response to rainfall variability in ungaged basins

Multicollinearity and omitted-variable bias are major limitations to developing multiple linear regression models to estimate streamflow characteristics in ungaged areas and varying rainfall conditions. Panel regression is used to overcome limitations of traditional regression methods, and obtain reliable model coefficients, in particular to...

Bassiouni, Maoya; Vogel, Richard M.; Archfield, Stacey A.

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Year Published: 2016

Low-flow characteristics for streams on the Islands of Kauaʻi, Oʻahu, Molokaʻi, Maui, and Hawaiʻi, State of Hawaiʻi

Statistical models were developed to estimate natural streamflow under low-flow conditions for streams with existing streamflow data at measurement sites on the Islands of Kauaʻi, Oʻahu, Molokaʻi, Maui, and Hawaiʻi. Streamflow statistics used to describe the low-flow characteristics are flow-duration discharges that are equaled or exceeded between...

Cheng, Chui Ling
Cheng, C.L., 2016, Low-flow characteristics for streams on the Islands of Kauaʻi, Oʻahu, Molokaʻi, Maui, and Hawaiʻi, State of Hawaiʻi: U.S. Geological Survey Scientific Investigations Report 2016-5103, 36 p., http://dx.doi.org/10.3133/sir20165103.

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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: 2015

Dim ultraviolet light as a means of deterring activity by the Hawaiian hoary bat Lasiurus cinereus semotus

Widespread bat fatalities at industrial wind turbines are a conservation issue with the potential to inhibit efficient use of an abundant source of energy. Bat fatalities can be reduced by altering turbine operations, but such curtailment decreases turbine efficiency. If additional ways of reducing bat fatalities at wind turbines were available...

Gorresen, P. Marcos; Cryan, Paul M.; Dalton, David C.; Wolf, Sandy; Johnson, Jessica A.; Todd, Christopher M.; Bonaccorso, Frank J.
Gorresen, P.M., P.M. Cryan, D. Dalton, J. Johnson, C. Todd, S. Wolf, and F.J. Bonaccorso. 2015. Dim ultraviolet light as a means of deterring activity by the Hawaiian hoary bat (Lasiurus cinereus semotus). Endangered Species Research 28:249-257.

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Year Published: 2015

Avian malaria in Hawaiian forest birds: Infection and population impacts across species and elevations

Wildlife diseases can present significant threats to ecological systems and biological diversity, as well as domestic animal and human health. However, determining the dynamics of wildlife diseases and understanding the impact on host populations is a significant challenge. In Hawai‘i, there is ample circumstantial evidence that introduced...

Samuel, Michael D.; Woodworth, Bethany L.; Atkinson, Carter T.; Hart, P. J.; LaPointe, Dennis

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Year Published: 2015

Mean annual water-budget components for the Island of Oahu, Hawaii, for average climate conditions, 1978-2007 rainfall and 2010 land cover

The shapefile associated with this metadata file represents the spatial distribution of mean annual water-budget components, in inches, for the Island of Oahu, Hawaii. The water-budget components in the shapefile were computed by a water-budget model for a scenario representative of average climate conditions (1978-2007 rainfall) and 2010 land...

Engott, John A.
Engott, J.A., 2015, Mean annual water-budget components for the Island of Oahu, Hawaii, for average climate conditions, 1978-2007 rainfall and 2010 land cover: USGS Water Resources NSDI Node, accessed February 23, 2015, at http://dx.doi.org/10.5066/F7XP72ZX.

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Year Published: 2015

Mean annual water-budget components for the Island of Oahu, Hawaii, for drought conditions, 1998-2002 rainfall and 2010 land cover

The shapefile associated with this metadata file represents the spatial distribution of mean annual water-budget components, in inches, for the Island of Oahu, Hawaii. The water-budget components in the shapefile were computed by a water-budget model for a scenario representative of drought conditions (1998-2002 rainfall) and 2010 land cover, as...

Engott, John A.
Engott, J.A., 2015, Mean annual water-budget components for the Island of Oahu, Hawaii, for drought conditions, 1998-2002 rainfall and 2010 land cover: USGS Water Resources NSDI Node, accessed February 23, 2015, at http://dx.doi.org/10.5066/F7SX6B7M.

Filter Total Items: 2,086
Eruptive activity has paused at the summit of Kīlauea, but volcanic gases are still seen emanating from the lava lake
June 25, 2021

Kīlauea summit on June 25, 2021

Blue-tinged gases are seen above the lava lake in Halema‘uma‘u crater in this image taken from the southwest rim on June 25, 2021, at 12:37 p.m. HST. Although eruptive activity has paused at the summit of Kīlauea, sulfur dioxide-rich gases can still be seen emanating from the lava lake, primarily along the northern margin but also at the west vent and along the southern

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webcam image of shield volcano
June 17, 2021

[MKcam] - Mauna Loa's Summit and Northeast Rift Zone

This image is from a research camera positioned on Mauna Kea. The camera looks south toward the summit and Northeast Rift Zone of Mauna Loa.

Animated GIF showing past 24 hours of live webcam views of shield volcano
June 16, 2021

[MKcam] - Mauna Loa's Summit and Northeast Rift Zone from Mauna Kea

Last 24 Hours - Live Image of Mauna Loa's Summit and Northeast Rift Zone from Mauna Kea [MKcam].

Disclaimer: The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal webcams record heat rather than light and get better views through volcanic gas. At times, clouds and rain obscure

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A view of Halema‘uma‘u on June 11, 2021, at 12:20 p.m. HST
June 11, 2021

Kīlauea summit on June 11, 2021

A view of Halema‘uma‘u on June 11, 2021, at 12:20 p.m. HST. Although eruptive activity has paused at the Kīlauea summit, HVO geologists still monitor the lava lake and summit area regularly. They make observations to note any physical changes in the landscape or visual changes in gas emissions. Field crews also look and listen for rockfalls and measure the depth of the

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No eruptive activity or major changes were observed during HVO's Kīlauea summit monitoring shift on June 8, 2021
June 8, 2021

Kīlauea summit on June 8, 2021

No eruptive activity or major changes were observed during a USGS Hawaiian Volcano Observatory Kīlauea summit monitoring shift on June 8, 2021. An area near the north wall of Halema‘uma‘u continues to visibly emit gases, though the eruption has paused. The most recent sulfur dioxide emission rate, measured on June 4, remains slightly elevated at 54 tonnes per day. USGS

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Portions of Crater Rim Drive, damaged during the 2018 Kīlauea summit collapse, are visible from the south rim of Halema‘uma‘u
June 8, 2021

Kīlauea summit on June 8, 2021

Portions of Crater Rim Drive, which was damaged during the 2018 Kīlauea summit collapse, are visible from the south rim of Halema‘uma‘u. The lava lake within Halema‘uma‘u and the east wall of Halema‘uma‘u crater are visible in the background. This area of Hawai‘i Volcanoes National Park remains closed to the public due to hazardous conditions. With permission from the

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On June 8, 2021, the USGS Hawaiian Volcano Observatory conducted a routine helicopter overflight and fieldwork at the summit of
June 8, 2021

Kīlauea summit on June 8, 2021

On June 8, 2021, the USGS Hawaiian Volcano Observatory conducted a routine helicopter overflight and fieldwork at the summit of Kīlauea. Here, a geophysicist returns to the helicopter after making Global Positioning Systems (GPS) measurements. These surveys measure small changes in the ground surface caused by subsurface magma movement. This scientist carries a GPS antenna

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A view of the crusted over lava lake within Halema‘uma‘u at Kīlauea summit
June 8, 2021

Kīlauea summit on June 8, 2021

A view of the crusted over lava lake within Halema‘uma‘u at Kīlauea summit, taken during a helicopter overflight on June 8, 2021. No incandescence (red lava) has been visible on the solidified lava lake surface for over two weeks. Light degassing continues in a few areas around the margin of the lava lake, mainly along the north crater wall (bottom left). USGS photo taken

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June 8, 2021

Routine overflight of Halema`uma`u crater

The eruption in Halema`uma`u crater, at the summit of Kilauea, is no longer active. The lava lake that was active between December 2020 and May 2021 remains solidified at the surface. A routine summit overflight observed no signs of residual incandescence in cracks, and only a diffuse gas plume rising from the northern portion of the lake.
 

A close-up Unoccupied Aircraft Systems (UAS) photo of the inactive western fissure within Halema‘uma‘u
June 3, 2021

UAS photo of the inactive western fissure — Halema‘uma‘u, June 3, 2021

This close-up Unoccupied Aircraft Systems (UAS) photo of the inactive western fissure within Halema‘uma‘u was captured on Thursday, June 3, 2021, at the summit of Kīlauea. The recent pause in the eruption has allowed the USGS Hawaiian Volcano Observatory (HVO) UAS pilots to safely photograph the eruptive features from new angles. For scale, the tallest parts of the western

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Unoccupied Aircraft Systems (UAS) photo, looking straight down into the inactive western fissure within Halema‘uma‘u
June 3, 2021

UAS view into inactive western fissure — Halema‘uma‘u, June 3, 2021

This Unoccupied Aircraft Systems (UAS) photo, looking straight down into the inactive western fissure within Halema‘uma‘u at the summit of Kīlauea, was captured on Thursday, June 3, 2021. One of the objectives of the UAS mission was to get a close-up look into the fissure to see if any incandescent lava was still visible. As evidenced by the darkness within the opening

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Color photograph of lava lake
June 2, 2021

Halema‘uma‘u crater at dusk on June 2

During a Kīlauea summit monitoring field shift on the evening of June 2, HVO geologists observed no eruptive activity or any major changes at the Halema‘uma‘u crater lava lake. No incandescence was visible anywhere on the lake surface or around the vents. Degassing from the west vent was minimal, with most outgassing now observed coming from a location along the the crater

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Color map of volcanoes
July 1, 2021

Happy Canada Day/Bonne Fête du Canada! While some past "Volcano Watch" articles have had a July 4th theme for the USA, this year we’re taking the opportunity to ensure readers know that our neighbors to the north have volcanoes, too—including potentially active ones. 

Eruptive activity has paused at the summit of Kīlauea, but volcanic gases are still seen emanating from the lava lake
June 28, 2021

Kīlauea's summit is no longer erupting; lava supply to the Halemaʻumaʻu lava lake has ceased and sulfur dioxide emissions have decreased to near pre-eruption background levels. HVO field crews—equipped with specialized safety gear—monitor for new changes from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Ninety seconds of raw seismic data from four seismic stations around Kīlauea summit.
June 24, 2021

The journey from volcanic repose to a climactic eruption is like a mystery movie that keeps you at the edge of your seat. The story is filled with twists and turns that often lead to dead ends.  

USGS science for a changing world
June 17, 2021

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.5 earthquake located beneath the south part of the Island of Hawai‘i, in the district of Kaʻū, on Thursday, June 17, at 4:32 p.m., HST.

Color photograph of instrument monitoring lava lake
June 17, 2021

The night sky over Kīlauea summit lit up with the glow of lava Sunday, December 20th, 2020. Deep in the caldera, the gathered lake water was boiled by surging lava. A reddened plume escaped the crater, as lava took its place within Halemaʻumaʻu. 

A view of Halema‘uma‘u on June 11, 2021, at 12:20 p.m. HST
June 14, 2021

Kīlauea's summit is no longer erupting; lava supply to the Halemaʻumaʻu lava lake has ceased and sulfur dioxide emissions have decreased to near pre-eruption background levels. HVO field crews—equipped with specialized safety gear—monitor for new changes from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Unoccupied Aircraft Systems (UAS) photo, looking straight down into the inactive western fissure within Halema‘uma‘u
June 11, 2021

Kīlauea's summit is no longer erupting; lava supply to the Halemaʻumaʻu lava lake has ceased and sulfur dioxide emissions have decreased to near pre-eruption background levels. HVO field crews—equipped with specialized safety gear—monitor for new changes from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

On June 8, 2021, the USGS Hawaiian Volcano Observatory conducted a routine helicopter overflight and fieldwork at the summit of
June 10, 2021

Kīlauea's summit is no longer erupting; lava supply to the Halemaʻumaʻu lava lake has ceased and sulfur dioxide emissions have decreased to near pre-eruption background levels. HVO field crews—equipped with specialized safety gear—monitor for new changes from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

On the west side of Mauna Loa summit, a campaign GPS (center-right) measures its location for a period of 2–3 days
June 10, 2021

Geodetic surveys measure the change in shape of our volcanoes due to changes in magma supply and storage. The USGS Hawaiian Volcano Observatory (HVO) has a long history of using many different types of instruments and technologies over the decades to detect these changes.   

Portions of Crater Rim Drive, damaged during the 2018 Kīlauea summit collapse, are visible from the south rim of Halema‘uma‘u
June 9, 2021

Kīlauea's summit is no longer erupting; lava supply to the Halemaʻumaʻu lava lake has ceased and sulfur dioxide emissions have decreased to near pre-eruption background levels. HVO field crews—equipped with specialized safety gear—monitor for new changes from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Animated GIF showing past 24 hours of live webcam views of shield volcano
June 8, 2021

A new USGS Hawaiian Volcano Observatory webcam provides views of Mauna Loa’s summit and Northeast Rift Zone. The webcam view is to the south from its position on the slope of Mauna Kea. Near-live webcam views and a 24-hour animated GIF are available here: https://www.usgs.gov/volcanoes/mauna-loa/mkcam-mauna-loas-summit-and-northeast-rift-zone-mauna-kea

Color photograph of volcanic vent and lava lake
June 3, 2021

Kīlauea’s recent volcano alert-level change, from Watch to Advisory, has attracted some attention.  

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