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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.

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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: October 20, 2021

Photo and Video Chronology – Kīlauea – October 20, 2021

The ongoing eruption at Kīlauea's summit began at 3:21 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Date published: October 19, 2021

Photo and Video Chronology – Kīlauea – October 19, 2021

The ongoing eruption at Kīlauea's summit began at 3:21 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Date published: October 18, 2021

Photo and Video Chronology – Kīlauea – October 18, 2021

The ongoing eruption at Kīlauea's summit began at 3:21 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Filter Total Items: 68
Date published: September 7, 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: September 1, 2021
    Status: Active

    Coastal Climate Impacts

    The impacts of climate change and sea-level rise around the Pacific and Arctic Oceans can vary tremendously. Thus far the vast majority of national and international impact assessments and models of coastal climate change have focused on low-relief coastlines that are not near seismically active zones. Furthermore, the degree to which extreme waves and wind will add further stress to coastal...

    Date published: August 26, 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: 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 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: 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

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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.

    Filter Total Items: 376
    Color map of lava lake temperature
    October 19, 2021

    A helicopter overflight on October 15, 2021, at approximately 7:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea.

    Color eruption contour map of Kilauea summit October 14, 2021
    October 14, 2021

    This reference map depicts the ongoing Kīlauea summit eruption as of October 14, 2021.

    Color map showing lava lake rise
    October 11, 2021

    The surface area of the Halema‘uma‘u lava lake at the summit of Kīlauea is now 553,000 square meters, or 157 acres.

    Detailed thermal map of the Halema‘uma‘u lava lake constructed from imagery collected during October 8 helicopter overflight
    October 9, 2021

    A helicopter overflight on October 8, 2021, at approximately 8:00 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea.

    Color map showing lava lake eruption features
    October 5, 2021

    This reference map depicts the ongoing Kīlauea summit eruption as of October 5, 2021.

    Color map of lava lake temperature
    October 2, 2021

    A helicopter overflight on October 1, 2021, at approximately 10:00 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea.

    Color thermal map of lava lake
    September 30, 2021

    A helicopter overflight on September 30, 2021, at approximately 7:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea.

    Map of volcano summit eruption
    September 29, 2021

    This reference map depicts the ongoing Kīlauea summit eruption as of approximately 6:00 PM on September 29, 2021.

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

    At approximately 3:20 p.m. HST on September 29, 2021, the USGS Hawaiian Volcano Observatory (HVO) detected glow in Kīlauea summit webcam images indicating that an eruption has commenced within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park. 

    Map of volcano summit
    August 30, 2021

     

    Summary map of intrusive activity at Kīlauea Volcano―August 23–30, 2021

    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

    Filter Total Items: 121
    Publication Thumbnail
    Year Published: 2021

    Rebounds, regresses, and recovery: A 15-year study of the coral reef community at Pila‘a, Kaua‘i after decades of natural and anthropogenic stress events

    Pila‘a reef on the north shore of Kaua‘i, Hawai‘i was subjected to a major flood event in 2001 that deposited extensive sediment on the reef flat, resulting in high coral mortality. To document potential recovery, this study replicated benthic and sediment surveys conducted immediately following the event and 15 years later. Coral cores were...

    Rodgers, Ku'ulei S.; Richards Dona, A.; Stender, Y. O.; Tsang, A. O.; Han, J. H. J.; Weible, Rebecca; Prouty, Nancy G.; Storlazzi, Curt D.; Graham, Andrew M.

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    Year Published: 2021

    The value of US coral reefs for flood risk reduction

    Habitats, such as coral reefs, can mitigate increasing flood damages through coastal protection services. We provide a fine-scale, national valuation of the flood risk reduction benefits of coral habitats to people, property, economies and infrastructure. Across 3,100 km of US coastline, the top-most 1 m of coral reefs prevents the 100-yr flood...

    Reguero, Borja G.; Storlazzi, Curt; Gibbs, Ann E.; Shope, James B.; Cole, Aaron D.; Cumming, Kristen A.; Beck, Mike

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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

    In situ observations of wave transformation and infragravity bore development across reef flats of varying geomorphology

    The character and energetics of infragravity (IG, 25 s < period < 250 s) and very-low frequency (VLF, period > 250 s) waves over coral reef flats can enhance shoreline erosion or accretion, and also govern extreme shoreline events such as runup, overwash, and flooding on coral reef-lined coasts. Here we use in situ wave measurements...

    Cheriton, Olivia; Storlazzi, Curt D.; Rosenberger, Kurt J.

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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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    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: 2,294
    Color image of lava lake temperature
    October 31, 2021

    Thermal images of the lava lake in Halemaʻumaʻu

    View looking down at the September-October 2021 lava lake eruption of Halemaʻumaʻu from the F1 thermal camera located on the western rim of the crater at Kīlauea’s summit. Molten material appears as warmer colors of yellow, orange, and pink, whereas cooler material is represented by dark blue and purple colors. The left-hand image is from September 29, 2021, at 5:32 p.m.

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    Color map of lava lake eruption at volcano summit
    October 20, 2021

    October 20, 2021—Kīlauea summit eruption reference map

    This reference map depicts the ongoing Kīlauea summit eruption on October 20, 2021. Only one eruptive vent is active within Halema‘uma‘u at this time, along the western edge of the rising lava lake. Similar to the last eruption—from December 2020 until May 2021—the eastern end of the lava lake has stagnated and solidified, and sits several yards (meters) lower than the

    ...
    Color photograph of lava cascade
    October 20, 2021

    Small lava cascade in the northwestern part of the lava lake

    Some noticeable topography has formed within the northwestern part of the lava lake in Halema‘uma‘u at the summit of Kīlauea. This photo from the western rim of the caldera looks down at the northwestern part of the lava lake, where a ledge with a height of 5 m (16 ft) has developed. A small cascade has formed that flows down from the main active part of the west lava lake

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    Color photograph of active lava lake
    October 20, 2021

    Mid-morning view of the lava lake and west vent from the western rim

    View looking east (standing on the western rim of Kīlauea caldera) of the the lava lake in Halema‘uma‘u crater and the west vent feeding the lava lake. Parts of the eastern lava lake are still rising but do not have active lava flows across the top of their surface. The western part of the lava lake still has active flows at the surface, which flow around the north and

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    Color photograph of volcanic vent with spatter
    October 20, 2021

    Telephoto view of spatter being thrown from the west vent

    Photo from the western rim of Kīlauea caldera looking down on the west vent feeding the lava lake in Halema‘uma‘u. Spatter is being thrown 5-10 m (16-33 ft) high out of the west vent onto the walls of the cone that has formed around the lava fountain. The small pond inside the cone is about 2 m (7 ft) higher and forms a small cascade down to the larger lava lake. USGS

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    Color photograph of volcanic plume and moon
    October 19, 2021

    Moonrise over Halema‘uma‘u and Kīlauea

    At 7 p.m. HST on October 19, 2021, the glow from Halema‘uma‘u lava lake colored the gas plume from the erupting west vent red. Meanwhile, the moon was rising in the east, further illuminating the scene above the summit of Kīlauea. The photo was taken from the old crater rim drive on the west side of the crater. USGS photo by J. Schmith.

    Color photograph of volcanic vent
    October 19, 2021

    Fountaining from the west vent in Halema‘uma‘u crater

    On October 19, 2021, the west vent that feeds lava into the Halema‘uma‘u lava lake at the summit of Kīlauea continues to erupt with 9 m (30 ft) high fountains. Lava within the vent is ponded about 5 m (16 ft) above the lava lake and flows into the lake on through an opening in the cone. This photo was taken at 2 p.m. HST from the south rim of the crater. USGS photo by J.

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    Color photograph of lava lake
    October 19, 2021

    Active lava surface meets stagnant surface in Halema‘uma‘u lava lake

    On October 19, 2021, the lava lake in Halema‘uma‘u crater—at the summit of Kīlauea—showed surface activity by crustal foundering, where warm lava flows on top of older, cooler surface crust that then sinks back into the lake. A 1 m (3 ft) high edge separates the active surface to the west from the stagnant surface to the east. This photo was taken at 2:15 p.m. HST. USGS

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    Color photograph of lava lake
    October 19, 2021

    Active lava surface meets stagnant surface in Halema‘uma‘u lava lake

    The large island that formed during the Halema‘uma‘u December 2020–May 2021 eruption at Kīlauea summit has active lava on both the north and south sides as the new lava lake continues to slowly fill the base of Halema‘uma‘u crater. This photo was taken at 2:15 p.m. HST. USGS photo by J. Schmith.

    Color photograph of volcanic vent
    October 18, 2021

    Halema‘uma‘u west vent activity

    Lava erupts from the western vent within Halema‘uma‘u crater, at the summit of Kīlauea, on October 18, 2021. Activity remains similar to previous days, with lava fountaining occurring through a perched pond within the vent cone and flowing down a short spillway into the lava lake. As lava enters the lake and moves away from the vent, the crust on the surface forms a radial

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    Color photograph of volcanic vent
    October 18, 2021

    Lava fountaining at Halema‘uma‘u west vent

    On October 18, 2021, lava fountaining at the western vent in Halema‘uma‘u was generally a few meters (10 feet) high. However, frequent larger bursts—like the one in this photo—threw lava up to the height of the cone around the vent (approximately 25 meters, or 80 feet, high). With permission, Hawaiian Volcano Observatory scientists continue to monitor the ongoing activity

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    Color photo of lava entering into a lava lake. The lava lake has a thin silver crust on the surface.
    October 18, 2021

    Kīlauea summit eruption — October 17, 2021

    A telephoto view of where lava exits the spatter cone at the west vent and flows into the perched lava lake in Halema‘uma‘u crater, at the summit of Kīlauea. The crustal plates and spreading zones form a complex pattern. This photo was taken from the northwest rim of the crater, in an area of Hawai‘i Volcanoes National Park that remains closed to the public due to safety

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    Color photograph of volcanic plume and moon
    October 20, 2021

    The ongoing eruption at Kīlauea's summit began at 3:21 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

    Color photograph of volcanic vent
    October 19, 2021

    The ongoing eruption at Kīlauea's summit began at 3:21 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

    Color photo of a lava fountain depositing molten spatter onto a dark spatter cone
    October 18, 2021

    The ongoing eruption at Kīlauea's summit began at 3:21 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

    Color photograph looking into the west vent spatter cone with a small lava fountain in the center
    October 15, 2021

    The ongoing eruption at Kīlauea's summit began at 3:21 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

    Color photo of a child taking cover under a desk during an earthquake drill
    October 14, 2021

    The magnitude-6.2 earthquake that occurred on Sunday, October 10 at 11:49 a.m. HST, originated just south of the Island of Hawai‘i. The large earthquake, caused by bending of the oceanic plate, serves as a stark reminder that the State of Hawaii is no stranger to potentially damaging earthquakes.

    Daytime color photo of a lava fountain erupting into a lava lake
    October 14, 2021

    The ongoing eruption at Kīlauea's summit began at 3:21 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

    Low-light telephoto color image of lava fountains supplying lava into lava lake
    October 13, 2021

    The ongoing eruption at Kīlauea's summit began at 3:21 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

    Color photograph of volcanic vent
    October 12, 2021

    A new eruption at Kīlauea's summit began at approximately 3:21 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

    Color photograph of volcanic vent
    October 11, 2021

    A new eruption at Kīlauea's summit began at approximately 3:20 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

    USGS science for a changing world
    October 10, 2021

    The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded an offshore magnitude-6.2 earthquake southwest the Island of Hawai‘i on Sunday, October 10, at 11:48 a.m., HST.

    Color photograph of volcanic vent
    October 8, 2021

    A new eruption at Kīlauea's summit began at approximately 3:20 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema'uma'u crater. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

    Color image of lava lake temperature
    October 7, 2021

    The past year has seen fluctuating lava lakes, ephemeral lava fountains, craggy spires, and drifting “islands” reminiscent of pre-1924 Halemaʻumaʻu activity at the summit of Kīlauea.  The recent activity has USGS Hawaiian Volcano Observatory (HVO) scientists reflecting on prior observations and how they compare to recent activity.  

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