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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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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.

News

Date published: July 29, 2021

Volcano Watch — Under the radar: Using weather stations to study Kīlauea’s December 20, 2020, plume

This week marks the second anniversary of the appearance of water in Kīlauea’s Halema‘uma‘u crater, so it seems timely to discuss the water lake’s demise last December 20, or rather, its transformation into a volcanic plume and how we use weather radar to investigate how that happened.

Date published: July 28, 2021

Photo and Video Chronology – Kīlauea – July 27, 2021

Field Work at Keller Well. 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.

Date published: July 26, 2021

Photo and Video Chronology – Kīlauea – July 23, 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.

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Date published: June 28, 2021
Status: Active

Coral Reef Project

Explore the fascinating undersea world of coral reefs. Learn how we map, monitor, and model coral reefs so we can better understand, protect, and preserve our Nation's reefs.

Date published: June 10, 2021
Status: Active

Coral Reef Project: Maui

As part of USGS Coral Reef Project studies, the USGS has been heavily involved in efforts to improve the health and resilience of Maui's coral reef system, bringing expertise in mapping, circulation and sediment studies, and seismic surveys.

Date published: May 25, 2021
Status: Active

The Value of U.S. Coral Reefs for Risk Reduction

Summary of the report, “Rigorously valuing the role of U.S. coral reefs in coastal hazard risk reduction”

    Contacts: Curt Storlazzi, PhD, Michael Beck
    Date published: May 24, 2021
    Status: Active

    Low-lying areas of tropical Pacific islands

    Sea level is rising faster than projected in the western Pacific, so understanding how wave-driven coastal flooding will affect inhabited, low-lying islands—most notably, the familiar ring-shaped atolls—as well as the low-elevation areas of high islands in the Pacific Ocean, is critical for decision-makers in protecting infrastructure or relocating resources and people.

    Date published: May 13, 2021
    Status: Active

    Pacific Island Bird Survey Design and Data Analysis

    Abundance data are collected for bird populations throughout the Pacific Islands by numerous federal, state, university, and non-profit organizations. In order to ensure data are standardized and available to researchers throughout the region, interagency bird databases have been created and continue to be used. These databases contain more than a million compiled, proofed, and standardized...

    Date published: April 15, 2021
    Status: Active

    Coral Reef Project: Oʻahu

    As part of the Coral Reef Project, the USGS is working closely with other local groups to investigate poor water quality issues in Maunalua Bay on the southeast coast of Oʻahu.

    Date published: April 15, 2021
    Status: Active

    Coral Reef Project: Hawaiʻi

    As part of the USGS Coral Reef Project, the USGS is working on the Kona (west) coast of Hawaiʻi to evaluate geologic resources at two historical parks.

    Date published: April 15, 2021
    Status: Active

    Coral Reef Project: Kauaʻi

    As part of the USGS Coral Reef Project, the USGS is working on the island of Kauaʻi to identify circulation patterns and a sediment budget for Hanalei Bay to help determine any effects to the coastal marine ecosystem.

    Date published: April 15, 2021
    Status: Active

    Coral Reef Project: Kahoʻolawe

    As part of the USGS Coral Reef Project, the USGS is trying to better understand how nearshore processes impact the deeper, scattered coral reef communities of Kahoʻolawe.

    Date published: April 15, 2021
    Status: Active

    Coral Reef Project: Molokaʻi

    As part of the USGS Coral Reef Project, recent USGS work on Molokaʻi includes looking into the coral record to find clues to past sedimentation events.

    Date published: December 11, 2020
    Status: Completed

    Update of the Hawaii Seismic Hazard Model Workshop #2

    Wednesday, November 18, 2019
    Virtual Meeting

    Date published: August 10, 2020
    Status: Completed

    Sea-Level Rise and Climate Change Impacts to Reefs

    Learn how the USGS studies sea-level rise and climate change impacts to coral reefs.

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    Date published: June 8, 2021

    Coral geochemistry time series from Kahekili, west Maui

    Geochemical analysis (including stable boron, boron:calcium ratio, and carbon and oxygen isotopes) were measured from coral cores collected in July 2013 from the shallow reef at Kahekili in Kaanapali, west Maui, Hawaii from scleractinian Porites lobata.

    Date published: March 26, 2021

    Cross-reef wave and water level data from coral reef environments

    Direct field observations of wave dynamics across coral reefs and the resulting water levels are limited. Here we provide direct in situ measurements of waves and water levels across a number of coral reefs, extending from the fore reef, across the reef crest, and to the shoreline. These measurements are provided to help better understand the evolution of waves across coral reefs and...

    Date published: April 22, 2020

    Avian Malaria Warning System

    Data for this warning system is a compilation of NOAA NCDC Global Historical Climatology Network data, Dark Sky API 2-week forecast data, and calculated historical annual climatic averages based on the NOAA NCDC data. All data has been statistically adjusted for each individual site location based on collected site data. 

    Date published: September 26, 2019

    Kīlauea 2018 - lower East Rift Zone eruption and summit-collapse events

    This geonarrative summarizes Kīlauea’s 2018 events, highlighting the historical context and contributions to science.

    Date published: September 23, 2019

    Data from Bristle-Thighed Curlews at James Campbell National Wildlife Refuge, O'ahu, Hawaii, 2012-2014

    This data package includes two tables of data for Bristle-thighed curlews (Numenius tahitiensis) captured 2012-2014 on the James Campbell National Wildlife Refuge O'ahu, Hawaii (21.68 N, 157.95 W). One table provides capture, banding, morphology, and genetic data. The second table provides mark-resight data for estimating the size of the wintering population on Oahu in April of 2014.

    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 2, 2019

    Observations of coral reef oceanographic and groundwater properties off Makua, Kauai, HI, USA, August 2016

    This data release includes measurements of circulation and waves, profiles of seawater properties, and profiles of resistivity on the shoreline, which can be used to assess the potential for terrestrial groundwater intrusion on the reef and the sources and fate of these water masses. The recent discovery of coral Black Band Disease at Mākua Reef on Kauaʻi, Hawaiʻi prompted an investigation...

    Date published: August 29, 2019

    Waiakane, Molokai, HI, 2018 Coral Reef Circulation and Sediment Dynamics Experiment

    To better constrain the influence of sea-level rise on waves and sediment transport over a fringing coral reef flat, an experiment was conducted across a large fringing reef off the south shore of Molokai, Hawai’i. Here we provide data on water levels, waves, currents observed during this field effort. Additional data sets will be added as they become available.

    Date published: August 26, 2019

    Bristle-Thighed Curlew (Numenius tahitiensis) Mark-Resight Encounter History from the James Campbell National Wildlife Refuge and Surrounding Area, Oahu, Hawaii, 2012-2017

    This data set contains one table with mark-resight observations of Bristle-thighed Curlews marked on Oahu, Hawaii, with plastic color leg flags, 2012-2017.

    Date published: March 21, 2019

    Core logs, scans, photographs, grain size, and radiocarbon data from coastal wetlands on the Hawaiian islands of Kauaʻi, Oʻahu, and Hawaiʻi

    This data release supports a study that reports on efforts to estimate future tsunami inundation through stratigraphic analyses of potential tsunami deposits beneath present and former Hawaiian wetlands, coastal lagoons, and river floodplains.

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    A helicopter overflight on June 8, 2021, allowed for aerial visual and thermal imagery collection of Halema‘uma‘u
    June 10, 2021

    June 08, 2021—Kīlauea summit thermal map constructed from aerial imagery

    Color map of lava lake at volcano summit
    May 28, 2021

     

    May 28, 2021—Kīlauea summit contour map showing lava lake level and topographic profiles across the caldera

    Rise of the Halema‘uma‘u Lava Lake—May 13, 2021
    May 28, 2021

    Digital elevation models (DEMs) created from photos taken during helicopter overflights of Kīlauea summit.

    Preliminary thermal map of the 2018 eruptive fissures along Kīlauea Volcano's lower East Rift Zone
    May 24, 2021

    A thermal map of Kīlauea Volcano's 2018 lower East Rift Zone fissures and steaming area.

    Digital elevation model of crater and lava lake
    May 18, 2021

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

    May 13, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery
    May 14, 2021

    May 13, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery

    A compilation of nine thermal maps created for the ongoing eruption in Halema‘uma‘u, at the summit of Kīlauea.
    May 14, 2021

    A compilation of nine thermal maps created for the ongoing eruption in Halema‘uma‘u, at the summit of Kīlauea, showing the evolution of the lava lake.

    Color map of lava lake at volcano summit
    May 7, 2021

    May 7, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

    As the lava lake in Halema‘uma‘u crater continues to rise, the surface area of the lake increases
    April 29, 2021

    Digital elevation models (DEMs) created from photos taken during helicopter overflights of Kīlauea summit.

    The digital elevation models (DEMs) created from photos taken during helicopter overflights of the Kīlauea summit have many uses
    April 29, 2021

    Digital elevation models (DEMs) created from photos taken during helicopter overflights of Kīlauea summit.

    Color map of lava
    April 26, 2021

    April 23, 2021—Kīlauea summit eruption contour map showing lava lake level and elevations of features within the caldera

    Color map of lava lake temperature
    April 20, 2021

    April 16, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery

    Filter Total Items: 116
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    Year Published: 2021

    Nearshore water quality and coral health indicators along the west coast of the Island of Hawaiʻi, 2010–2014

    Coral reefs worldwide are experiencing rapid degradation in response to climate and land-use change, namely effects of warming sea-surface temperatures, contaminant runoff, and overfishing. Extensive coral bleaching caused by the steady rise of sea-surface temperatures is projected to increase, but our understanding and ability to predict where...

    Grossman, Eric E.; Marrack, Lisa; vanArendonk, Nathan R.
    Grossman, E.E., Marrack, L., and vanArendonk, N.R., 2021, Nearshore water quality and coral health indicators along the west coast of the Island of Hawaiʻi, 2010–2014: U.S. Geological Survey Open-File Report 2020–1128, 45 p., https://doi.org/10.3133/ofr20201128.

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    Year Published: 2020

    Seismic and geodetic progression of the 2018 summit caldera collapse of Kīlauea Volcano

    The 2018 eruption of Kīlauea volcano, Hawaiʻi, resulted in a major collapse of the summit caldera along with an effusive eruption in the lower East Rift Zone. The caldera collapse comprised 62 highly similar collapse cycles of strong ground deformation and earthquake swarms that ended with a magnitude 5 collapse event and one partial cycle that...

    Tepp, Gabrielle; Hotovec-Ellis, Alicia J.; Shiro, Brian; Johanson, Ingrid; Thelen, Weston; Haney, Matthew M.

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    Year Published: 2020

    Sedimentary evidence of prehistoric distant-source tsunamis in the Hawaiian Islands

    Over the past 200 years of written records, the Hawaiian Islands have experienced tens of tsunamis generated by earthquakes in the subduction zones of the Pacific "Ring of Fire" (e.g., Alaska-Aleutian, Kuril-Kamchatka, Chile, and Japan). Mapping and dating anomalous beds of sand and silt deposited by tsunamis in low-lying areas along Pacific...

    La Selle, Seanpaul; Richmond, Bruce M.; Jaffe, Bruce E.; Nelson, Alan; Griswold, Frances; Arcos, Maria E.M.; Chague, Catherine; Bishop, James M.; Bellanova, Piero; Kane, Haunani H.; Lunghino, Brent D.; Gelfenbaum, Guy R.

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    Year Published: 2020

    Organic geochemical investigation of far‐field tsunami deposits of the Kahana Valley, O'ahu, Hawai'i

    Far‐field tsunami deposits observed in the Kahana Valley, O'ahu, Hawai'i (USA), were investigated for their organic‐geochemical content. During short high‐energy events, (tsunamis and storms) organic and chemical components are transported with sediment from marine to terrestrial areas. This study investigates the use of anthropogenic based...

    Bellanova, Piero; Frenken, Mike; Richmond, Bruce M.; Schwarzbauer, Jan; La Selle, Seanpaul; Griswold, Frances; Jaffe, Bruce E.; Nelson, Alan R.; Reicherter, Klaus

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    Year Published: 2019

    Physicochemical controls on zones of higher coral stress where Black Band Disease occurs at Mākua Reef, Kauaʻi, Hawaiʻi

    Pervasive and sustained coral diseases contribute to the systemic degradation of reef ecosystems, however, to date an understanding of the physicochemical controls on a coral disease event is still largely lacking. Water circulation and residence times and submarine groundwater discharge all determine the degree to which reef organisms are exposed...

    Oberle, Ferdinand; Storlazzi, Curt D.; Cheriton, Olivia; Takesue, Renee K.; Hoover, Daniel J.; Logan, Joshua B.; Runyon, Christina M.; Kellogg, Christina A.; Johnson, Cordell; Swarzenski, Peter W.

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    Year Published: 2019

    The major coral reefs of Maui Nui, Hawai‘i—distribution, physical characteristics, oceanographic controls, and environmental threats

    Coral reefs are widely recognized as critical to Hawaiʻi’s economy, food resources, and protection from damaging storm waves. Yet overfishing, land-based pollution, and climate change are threatening the health and sustainability of those reefs, and accordingly, both the Federal and State governments have called for protection and effective...

    Field, Michael E.; Storlazzi, Curt D.; Gibbs, Ann E.; D'Antonio, Nicole L.; Cochran, Susan A.
    Field, M.E., Storlazzi, C.D., Gibbs, A.E., D’Antonio, N.L., and Cochran, S.A, 2019, The major coral reefs of Maui Nui, Hawai‘i—Distribution, physical characteristics, oceanographic controls, and environmental threats: U.S. Geological Survey Open-File Report 2019–1019, 71 p., https://doi.org/10.3133/ofr20191019.

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    Year Published: 2019

    The influence of sea level on incident and infragravity wave-driven sediment dynamics across a fringing coral reef

    Coral reefs generate significant volumes of carbonate sediment that becomes the primary source of beach material along many low-latitude shorelines that protect hundreds of millions of people globally. Despite this fact, there is little understanding of the specific processes that transport the carbonate sediment produced on the outer portions of...

    Storlazzi, Curt D.; Cheriton, Olivia; Rosenberger, Kurt J.; Pomeroy, Andrew; Lowe, Ryan J.

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    Year Published: 2019

    Rigorously valuing the role of U.S. coral reefs in coastal hazard risk reduction

    The degradation of coastal habitats, particularly coral reefs, raises risks by increasing the exposure of coastal 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 are not considered in decision making...

    Storlazzi, Curt D.; Reguero, Borja G.; Cole, Aaron D.; Lowe, Erik; Shope, James B.; Gibbs, Ann E.; Nickel, Barry A.; McCall, Robert T.; van Dongeren, Ap R.; Beck, Michael W.
    Storlazzi, C.D., Reguero, B.G., Cole, A.D., Lowe, E., Shope, J.B., Gibbs, A.E., Nickel, B.A., McCall, R.T., van Dongeren, A.R., and Beck, M.W., 2019, Rigorously valuing the role of U.S. coral reefs in coastal hazard risk reduction: U.S. Geological Survey Open-File Report 2019–1027, 42 p., https://doi.org/10.3133/ofr20191027.

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    Year Published: 2019

    Coral skeleton δ15N as a tracer of historic nutrient loading to a coral reef in Maui, Hawaii

    Excess nutrient loading to nearshore environments has been linked to declining water quality and ecosystem health. Macro-algal blooms, eutrophication, and reduction in coral cover have been observed in West Maui, Hawaii, and linked to nutrient inputs from coastal submarine groundwater seeps. Here, we present a forty-year record of nitrogen...

    Murray, Joseph; Prouty, Nancy G.; Peek, Sara E.; Paytan, Adina

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    Year Published: 2018

    Honolulu Magnetic Observatory

    Tucked in a grove of thorny mesquite trees, on an ancient coral reef on the south side of the Hawaiian island of Oahu, west of Pearl Harbor, a small unmanned observatory quietly records the Earth’s time-varying magnetic field. The Honolulu Magnetic Observatory is 1 of 14 that the U.S. Geological Survey Geomag­netism Program operates at various...

    Love, Jeffrey J.; Finn, Carol
    Love, J.J., and Finn, C.A., 2018, Honolulu Magnetic Observatory: U.S. Geological Survey Fact Sheet 2018–3029, 2 p.

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    Year Published: 2018

    Groundwater-level, groundwater-temperature, and barometric-pressure data, July 2017 to February 2018, Hālawa Area, Oʻahu, Hawaiʻi

    The Red Hill Bulk Fuel Storage Facility, operated by the U.S. Navy and located in the Hālawa area, Oʻahu, Hawaiʻi, includes 20 underground storage tanks that can hold a total of 250 million gallons of fuel. In January 2014, the U.S. Navy notified the Hawaiʻi Department of Health and U.S. Environmental Protection Agency of release of an estimated...

    Mitchell, Jackson N.; Oki, Delwyn S.
    Mitchell, J.N., and Oki, D.S., 2018, Groundwater-level, groundwater-temperature, and barometric-pressure data, July 2017 to February 2018, Hālawa Area, O‘ahu, Hawai‘i: U.S. Geological Survey Open-File Report 2018–1147, 35 p., https://doi.org/10.3133/ofr20181147.

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    Year Published: 2018

    Volcanic aquifers of Hawai‘i—Hydrogeology, water budgets, and conceptual models

    Hawai‘i’s aquifers have limited capacity to store fresh groundwater because each island is small and surrounded by saltwater. Saltwater also underlies much of the fresh groundwater. Fresh groundwater resources are, therefore, particularly vulnerable to human activity, short-term climate cycles, and long-term climate change. Availability of fresh...

    Izuka, Scot K.; Engott, John A.; Rotzoll, Kolja; Bassiouni, Maoya; Johnson, Adam G.; Miller, Lisa D.; Mair, Alan
    Izuka, S.K., Engott, J.A., Rotzoll, Kolja, Bassiouni, Maoya, Johnson, A.G., Miller, L.D., and Mair, Alan, 2018, Volcanic aquifers of Hawai‘i—Hydrogeology, water budgets, and conceptual models (ver. 2.0, March 2018): U.S. Geological Survey Scientific Investigations Report 2015-5164, 158 p., https://doi.org/10.3133/sir20155164.

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    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.

    Filter Total Items: 2,088
    Color photograph of scientists in field
    July 27, 2021

    Field Work at Keller Well

    HVO geologists measure the depth to the water table at the Keller Well, located south of Halema‘uma‘u crater. The Keller Well is a borehole drilled in 1973 to a depth of 4,140 ft (1,262 m) that has been used to monitor the hydrology of the summit region of Kīlauea volcano. Photo taken on July 27, 2021, at 9:30 a.m. HST. USGS photo by J.M. Chang.

    HVO geologist conducts maintenance on the S1cam web camera located along the southern rim of Halema‘uma‘u
    July 23, 2021

    Maintenance of volcano monitoring webcam—Kīlauea summit

    An HVO geologist conducts maintenance on the S1cam web camera located along the southern rim of Halema‘uma‘u, at the summit of Kīlauea. This webcam has been recording images of the recent eruption and lava lake in Halema‘uma‘u from an area within Hawai‘i Volcanoes

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    An HVO geologist conducts a routine high-precision survey of the inactive lava lake in Halema‘uma‘u, at the summit of Kīlauea
    July 22, 2021

    HVO geologist conducts a routine high-precision survey—Kīlauea summit

    An HVO geologist conducts a routine high-precision survey of the inactive lava lake in Halema‘uma‘u, at the summit of Kīlauea volcano. Mist moving across the caldera on the morning of July 22 produced a rainbow over the lake. No significant changes have occurred in Halema‘uma‘u in recent weeks. USGS photo by M. Patrick.

    Aerial photo of the inactive lava lake within Halema‘uma‘u at the summit of Kīlauea
    July 22, 2021

    Aerial photo of inactive lava lake—Halema‘uma‘u, Kīlauea summit

    This aerial photo of the inactive lava lake within Halema‘uma‘u at the summit of Kīlauea was captured during a routine helicopter overflight by HVO geologists on Thursday, July 22, 2021. Here, the lava lake is viewed from the northeast, with the oldest parts of the lake surface—the first to crust over—visible on the near side, and the most recently active areas in the far

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    Wide-angle aerial view looking southeast over Kīlauea's summit caldera
    July 22, 2021

    Aerial view of Halema‘uma‘u and the Kīlauea summit caldera—July 22

    This wide-angle aerial view looks southeast over Kīlauea's summit caldera, with the recently active lava lake in Halema‘uma‘u visible in the lower right. On the left side of the photo, the large cliffs formed during the 2018 collapses are visible. Kīlauea Iki can be seen in the upper left. USGS photo by M. Patrick, taken on July 22, 2021.

    HVO scientists surveying the floor of the down-dropped block within Kīlauea caldera
    July 22, 2021

    Volcanic gas survey within Kīlauea caldera—July 22, 2021

    On July 22, HVO scientists surveyed the floor of the down-dropped block within Kīlauea caldera for ​diffuse volcanic gas emissions. This particular part of the caldera floor subsided during Kīlauea's collapse events in 2018. The caldera-wide ongoing gas survey will be compared to gas surveys done in the area prior to the 2018 collapse events and will reveal any changes in

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    HVO scientists walk transects along the down-dropped portion of Kīlauea caldera floor
    July 22, 2021

    HVO scientists measure volcanic gasses—Kīlauea caldera floor, July 22

    HVO scientists walk transects along the down-dropped portion of Kīlauea caldera floor as part of a gas survey conducted on July 22. The multigas instruments carried on the scientists' backs measure the amount of carbon dioxide (CO2), sulfur dioxide (SO2), water vapor (H2O), and hydrogen sulfide (H2S) via an inlet hose oriented

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    HVO scientist samples the gas around a crack identified as emitting elevated levels of carbon dioxide at Kīlauea summit
    July 22, 2021

    HVO scientist samples volcanic gas from crack—Kīlauea summit, July 22

    An HVO scientist samples the gas around a crack identified as emitting elevated levels of carbon dioxide (a volcanic gas) on the down-dropped block within Kīlauea caldera. The sample will later be analyzed to determine its complete chemical composition. This work was conducted within a closed area of Hawai‘i Volcanoes National Park, with park permission. Scientists wore

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    Color photograph of volcanic vent
    July 16, 2021

    Close-up of inactive western fissure in Halema‘uma‘u, July 16, 2021

    This close-up view of the western fissure within Halema‘uma‘u at the summit of Kīlauea was captured on Friday, July 16, 2021. HVO scientists were making a routine observational visit to the crater rim; no changes to the inactive lava lake were detected. For scale, the top of the fissure complex was measured to be standing approximately 20 m (66 ft) above the surrounding

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    Hawaiian Volcano Observatory geologist uses a laser rangefinder to survey points across the solidified lava lake surface
    July 9, 2021

    Halema‘uma‘u observations — July 9, 2021

    A Hawaiian Volcano Observatory geologist uses a laser rangefinder to survey points across the solidified lava lake surface in Halema‘uma‘u, at the summit of Kīlauea. No significant changes in lake surface elevation have been observed in recent weeks. USGS photo by M. Patrick taken on July 9, 2021.

    Color photograph of crater
    July 2, 2021

    View of Halema‘uma‘u at Kīlauea summit - July 2 2021

    A view looking north into Halema‘uma‘u on July 2, 2021. Although eruptive activity has paused at the summit of Kīlauea, HVO geologists still monitor the lava lake and summit area regularly. Lava lake surface depths remain the same over the past few weeks. The field crew on July 2 heard two rockfalls originating slightly east (right) of the field of view from the Halema‘uma

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    Color map of volcanoes
    July 1, 2021

    Volcanoes in Canada?

    At left, a map of select recent volcanoes and volcanic areas in Canada (volcano location data from: Global GIS: volcanoes of the world; volcano basic data. [Shapefile]. American Geological Institute. Retrieved from https://earthworks.stanford.edu/catalog/harvard-glb-volc). Right top, Eve Cone, a cinder

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    Color images of volcanic plume
    July 29, 2021

    This week marks the second anniversary of the appearance of water in Kīlauea’s Halema‘uma‘u crater, so it seems timely to discuss the water lake’s demise last December 20, or rather, its transformation into a volcanic plume and how we use weather radar to investigate how that happened.

    Color photograph of scientists in field
    July 28, 2021

    Field Work at Keller Well. 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.

    HVO geologist conducts maintenance on the S1cam web camera located along the southern rim of Halema‘uma‘u
    July 26, 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.

    USGS science for a changing world
    July 23, 2021

    The USGS recently published "Unoccupied Aircraft Systems (UAS) video of the 2018 summit eruption of Kīlauea Volcano, Hawaii." The Data Release contains Unoccupied Aircraft Systems (UAS) footage from the 2018 summit collapse of Kīlauea Volcano, Island of Hawai‘i. 

    An HVO geologist conducts a routine high-precision survey of the inactive lava lake in Halema‘uma‘u, at the summit of Kīlauea
    July 23, 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.

    Continuously recording Global Positioning System (GPS) equipment installed on the south side of the Island of Hawai‘i
    July 22, 2021

    Many people living in the Hawaiian Islands are accustomed to feeling occasional earthquakes since the State of Hawaii is one of the most seismically active locations in the United States. Unlike some other earthquake-prone places in the U.S., for example California, where the earthquakes are related to tectonic plates sliding past each other, our earthquakes are related to volcanoes.  

    Color photograph of volcanic vent
    July 19, 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.

    Black and white maps of lava flow
    July 15, 2021

    The most recent page in Mauna Loa’s eruptive history was written in 1984. The eruption began in March of 1984, about a decade after the 1975 summit eruption (the topic of last week’s “Volcano Watch” article). Here’s a quick look at how the eruption proceeded and its impacts on residents as gleaned from contemporaneous newspaper accounts.  

    Hawaiian Volcano Observatory geologist uses a laser rangefinder to survey points across the solidified lava lake surface
    July 12, 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.

    Aerial view of a portion of the north flank of Mauna Loa, looking north
    July 8, 2021

    Mauna Loa erupted forty-six years ago this week, on July 5–6, 1975, in a 20-hour event with vents confined to the summit region (the area above 3,660 m/12,000 ft) and lava flows descending to just below 3,170 m (10,400 ft). This was the first eruption in 25 years, at the time the longest quiet stretch since 1843 (we are currently in the longest stretch at 37 years and counting). 

    USGS science for a changing world
    July 7, 2021

    A magnitude-4.2 earthquake located to the west of the Island of Hawai‘i, was reported by the U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) on Wednesday, July 7, 2021, at 7:41 a.m. HST.

    USGS science for a changing world
    July 5, 2021

    A magnitude-5.2 earthquake located to the north of the Island of Hawai‘i, was recorded by the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) on July 5, at 1:43 p.m. HST.

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