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Date Published: December 1, 2016

USGS Brown Treesnake Laboratory and Rapid Response Facility - Guam

USGS scientists and staff associated with the Brown Treesnake Project are co-located at the Guam National Wildlife Refuge at the northern end of Guam in the western Pacific Ocean. Project staff work on developing and testing control tools for invasive brown treesnakes, as well as understanding their impacts on Guam's ecosystems. Project staff also lead the multi-agency Brown Treesnake Rapid...

Ducks eating brine flies
Date Published: October 19, 2016
Status: Active

Survival and Reintroduction of the Laysan Teal

The Challenge: The Laysan Teal is an endangered, endemic, Hawaiian dabbling duck that has been pushed to the brink of extinction numerous times. The previous range includes the Main and Northwestern Hawaiian Islands, and its current range is less than 10 sq. km within the National Wildlife Refuges of Papahānaumokuākea Marine National Monument. This non-migratory waterfowl was eliminated from...

a birder on a bridge looking at the birds
Date Published: July 26, 2016
Status: Active

HDgov: Multi-agency Website for Human Dimensions of Natural Resources

HDgov is an interactive and mobile-responsive online portal to interagency, academic, and non-government resources focused on the human dimensions of natural resource management. The web portal provides easy access to tools, publications, data, and methods that help ensure that the people side of natural resources is considered throughout the entire natural resource management process. The...

A crowd of people in a National Park.
Date Published: July 26, 2016
Status: Active

National Park Service Visitor Spending Effects

The National Park Service (NPS) manages the Nation’s most iconic destinations that attract millions of visitors from across the Nation and around the world. Trip-related spending by NPS visitors generates and supports a considerable amount of economic activity within park gateway communities. USGS economists collaborate with the National Park Service social science program to estimate NPS...

Migratory Bird Hunting Stamp
Date Published: July 21, 2016
Status: Active

North American Waterfowl Management Plan

The ultimate success of North American Waterfowl Management Plan (NAWMP) depends on maintaining relevance to stakeholders and society. In order to be relevant, a first step is to better understand what people value in regard to waterfowl and their habitats. Without this information, NAWMP population, habitat, and people objectives may not reflect stakeholder and societal values; and management...

Hawaii Amakihi
Date Published: July 5, 2016
Status: Active

Monitoring Hawaiian Biodiversity: Changes to forest birds and their habitat

Hawaiian forests are beset by many stressors, resulting in a complex pattern of altered ecosystems, impeirled species, and (in some areas) substantial protection and restoration. Short-term studies focused on specific sites or biota have limited value in understanding landscape-level change. Long-term and spatialy extensive data are needed to understand how ecosystems are reacting to both...

Ohia snags and invasive grasses in Hawaii Volcanoes National Park
Date Published: May 13, 2016
Status: Active

Restoration Ecology

Restoration of ecological systems in wildland areas often involves restoring species to habitats degraded by invasive plant and animal species.  Often, such invasive species exert community level impacts, such as direct competition, but may also alter ecosystem function. For example, invasive plants have been documented to alter fire regimes, soil nutrients and microbes, food webs, and/or...

Close-up of Hawaiian plant
Date Published: May 11, 2016
Status: Active

Status and Trends of Hawaiian Flora and Fauna

Hawai‘i has more endangered species than any other state - over 394 species.  In spite of this fact, there is not a central clearing house for information on the status and trends of these species.  Information is spread over the following areas:

1. USGS maintains some information on Forest Birds.

2. USFWS maintains summary data on listed and proposed plants.

3. The...

Koa looper moth caterpillars on Koa leaves
Date Published: May 11, 2016
Status: Completed

Dynamics of a Koa Looper Moth Outbreak and Response by the Native Forest Community

A massive outbreak of the native koa looper moth (Scotorythra paludicola; Geometridae) defoliated more than a third of the koa (Acacia koa) forest on Hawai‘i Island during 2013–2014. Our objective was to record the dynamics of the koa looper (Scotorythra paludicola) outbreak and evaluate the response to the outbreak by the forest ecosystem generally as well as select native and invasive...

A small native Hawaiian heiau (religious site) and stone walls at Kaloko Honokohau National Historical Park.
Date Published: April 26, 2016
Status: Active

Webinar: Recreational Seascapes: Integrating Human and Mechanical Observations on Hawaiʻi Island

View this webinar to learn how scientists explored how people on the seascape experienced climate and environmental changes in Hawai'i.

Contacts: Noelani Puniwai
Development of an Environmental Assessment and Eradication Plan to Remove Tilapia from Ponds and Wetlands in National Parks on t
Date Published: April 17, 2016
Status: Completed

Development of an Environmental Assessment and Eradication Plan to Remove Tilapia from Ponds and Wetlands in National Parks on the Island of Hawai’i

Mozambique tilapia, a highly invasive non-native fish of the family Cichlidae, were discovered in a wetland in Kaloko-Honokohau National Historical Park on the Big Island of Hawai'i. As the U.S. National Park Service works to restore the natural communities and functions of wetland ecosystems on the island, the eradication of the tilapia population is considered necessary to fully achieve...

Contacts: Leo Nico, Ph.D.
homes damaged by hurricane Sandy on Fire Island, New York
Date Published: April 13, 2016

Understanding Coastal Change

Scientists perform a range of studies that document, assess, and model coastal change, risk, and vulnerability. Studies include historical shoreline change, the geologic structure and history of coastal regions, sediment supply and transport, sea-level rise, and how extreme storm events affect rates and impacts of coastal change.

Filter Total Items: 60
Ohia canopy from below
October 24, 2017

These two raster data layers depict the land cover and degree of human disturbance to plant communities on the seven main Hawaiian Islands, and were developed as part of a comprehensive USGS assessment of carbon sequestration potential by natural ecosystems in the State of Hawaii.

Koa flowers
October 24, 2017

The datasets used in the the research project entitled, "Facilitating Adaptation in Montane Plants to Changing Precipitation along an Elevation Gradient," are presented. Report available.

Coastal strand vegetation
October 24, 2017

 

This dataset provides information on the current status and various other habitat and descriptive attributes of the native coastal vegetation for seven of the main Hawaiian Islands (i.e., does not include Ni`ihau). Report available.

image of Tableau dashboard
October 1, 2017

Tsunami waves created by earthquakes far from Hawai’i arrive hours later along Hawaiian shorelines but can be difficult to escape if everyone uses their cars to evacuate. Working with the Hawai’i Emergency Management Agency, researchers with the U.S. Geological Survey (USGS) used computer modeling to identify areas where people should be able to evacuate on foot in less than 15 minutes. 

Application screenshot thumbnail
September 1, 2017

The National Water Information System (NWIS) web application provides access to real-time and historical surface-water, groundwater, water-quality, and water-use data collected at approximately 1.5 million sites across all 50 states.

USGS
April 25, 2017

This data release contains time-series of seawater carbonate chemistry variables, including salinity, dissolved inorganic nutrients, pH, total alkalinity, and dissolved inorganic carbon from sites along Kahekili Beach Park, west Maui, Hawai‘i. It also containsdata from coral cores collected from the shallow reef at Kahekili in July 2013 and analyzed for coral growth parameters and geochemical

USGS
January 1, 2017

Time-series of seawater carbonate chemistry variables, including salinity, dissolved inorganic nutrients, pH, total alkalinity, and dissolved inorganic carbon from sites along Kahekili Beach Park, west Maui near submarine groundwater seeps and living coral reefs. Samples for seawater were collected by pumping bottom water from the seafloor using a peristaltic pump and collecting discrete water sa

Map shows both land and underwater features of a busy tourist island.
December 21, 2016

USGS has the capability to compile digital image mosaics that are useful for creating detailed map products. Image maps covering the shallow near-shore coastal waters have been produced for several of the main Hawaiian Islands, including Hawai‘i, Maui, Moloka‘i, and O‘ahu and are presented in JPEG2000 (.jp2) format.

USGS
June 15, 2016

Continuously recording rainfall sites utilize equipment that automatically record and store the amount of rainfall at specific intervals. Many sites are equipped with telemetry so that information can be electronically transmitted and displayed on the internet in real time.

USGS
June 15, 2016

Suspended-sediment concentrations are determined from samples collected by an autosampler or collected manually.

USGS
June 15, 2016

At some sites, groundwater levels in wells are manually measured, using steel or electrical tapes or pressure transducers. Other sites utilize electronic equipment to record and store the water levels at specific intervals. Some sites are equipped with telemetry so that information can be electronically transmitted and displayed in real-time on the internet.

USGS
June 15, 2016

Continuously recording surface-water stations are stations with equipment that automatically record and store data at specific intervals. Many stations are equipped with telemetry so that information can be electronically transmitted and displayed on the internet in real time.

Filter Total Items: 201
April 30th, 2018, Pu‘u ‘Ō‘ō crack...
May 1, 2018

Recent changes to Kīlauea's East Rift Zone lava flow field and Pu‘u ‘Ō‘ō cone.

Halema‘uma‘u Overflow Map...
April 28, 2018

Recent Lava Lake overflows within Kīlauea's Halemaʻumaʻu crater.

Map of Flow Field...
April 13, 2018

Recent changes to Kīlauea’s East Rift Zone lava flow field.

Satellite image shows location of breakouts on flow field...
April 12, 2018

Image shows that breakouts continue in several areas on the flow field.

Map of Flow Field...
March 22, 2018

Recent changes to Kīlauea’s East Rift Zone lava flow field.

Map of Flow Field...
February 27, 2018

Recent changes to Kīlauea’s East Rift Zone lava flow field.

Map of Flow Field...
February 23, 2018

Recent changes to Kīlauea’s East Rift Zone lava flow field.

Map of Flow Field...
February 1, 2018

Recent changes to Kīlauea’s East Rift Zone lava flow field

Thermal map of flow field...
January 5, 2018

This map shows a thermal map over the Episode 61g lava flow.

Map of Flow Field...
January 5, 2018

Recent changes to Kīlauea’s East Rift Zone lava flow field.

Thermal map of fissure system and lava flows...
January 1, 2018

Thermal map shows the fissure system and lava flows. The primary lava flow originates from Fissure 22, but a new flow has been active over the past day from the Fissure 6 area.

Kīlauea Lower East Rift Zone Fissures, May 12 at 12:00 p.m. HST...
January 1, 2018

Location of fissure 16, as well as earlier fissures, lava flows, and steaming areas

Filter Total Items: 108
Publication Thumbnail
Year Published: 2011

Small explosion from new vent at Kilauea’s summit

At 0258 Hawaii‐Aleutian Standard Time (HST) on 19 March 2008, a small explosion scattered altered and fresh lithic debris across a 40‐hectare area at the summit of Kilauea volcano. This explosion, the first recorded there since 1924, issued from a vent about 35 meters wide along the east wall of Halema'uma'u Crater. Ballistic fragments—the largest...

Wilson, David C.; Elias, Tamar; Orr, T.; Patrick, Matthew R.; Sutton, Jeff; Swanson, Don
Wilson, David, Elias, Tamar, Orr, Tim, Patrick, Matt, Sutton, Jeff, and Swanson, Don, 2008, Small explosion from new vent at Kilauea’s summit: Eos Transactions of the American Geophysical Union, v. 89, p. 203

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Year Published: 2011

Shallow degassing events as a trigger for very-long-period seismicity at Kilauea Volcano, Hawaii

The first eruptive activity at Kīlauea Volcano’s summit in 25 years began in March 2008 with the opening of a 35-m-wide vent in Halema‘uma‘u crater. The new activity has produced prominent very-long-period (VLP) signals corresponding with two new behaviors: episodic tremor bursts and small explosive events, both of which represent degassing...

Patrick, Matthew R.; Wilson, David C.; Fee, David; Orr, Tim R.; Swanson, Don
Patrick, Matthew, Wilson, David, Fee, David, Orr, Tim, and Swanson, Don, 2011, Shallow degassing events as a trigger for very-long-period seismicity at Kilauea Volcano, Hawaii: Bulletin of Volcanology, v. 73, p. 1179–1186.

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Year Published: 2011

Hydrogeology of the Hawaiian islands

Volcanic-rock aquifers are the most extensive and productive aquifers in the Hawaiian Islands. These aquifers contain different types of groundwater systems depending on the geologic setting in which they occur. The most common groundwater systems include coastal freshwater-lens systems in the dike-free flanks of the volcanoes and dike-impounded...

Cabrera, Maria del Carmen; Lambán, Luis Javier; Valverde, Margarida; Gingerich, Stephen B.; Oki, Delwyn S.

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Year Published: 2011

Recent storm and tsunami coarse-clast deposit characteristics, southeast Hawai'i

Deposits formed by extreme waves can be useful in elucidating the type and characteristics of the depositional event. The study area on the southeast coast of the island of Hawaiʻi is characterized by the presence of geologically young basalts of known age that are mantled by recent wave-derived sedimentary deposits. The area has been impacted by...

Richmond, B.M.; Watt, Sebastian; Buckley, M.; Jaffe, B.E.; Gelfenbaum, G.; Morton, R.A.
Recent storm and tsunami coarse-clast deposit characteristics, southeast Hawai'i; 2011; Article; Journal; Marine Geology; Richmond, B. M.; Watt, S.; Buckley, M.; Jaffe, B. E.; Gelfenbaum, G.; Morton, R. A.

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Year Published: 2010

Changes of freshwater-lens thickness in basaltic island aquifers overlain by thick coastal sediments

Freshwater-lens thickness and long-term changes in freshwater volume in coastal aquifers are commonly assessed through repeated measurement of salinity profiles from monitor wells that penetrate into underlying salt water. In Hawaii, the thickest measured freshwater lens is currently 262 m in dike-free, volcanic-rock aquifers that are overlain by...

Rotzoll, Kolja; Oki, Delwyn S.; El-Kadi, Aly I.
Changes of freshwater-lens thickness in basaltic island aquifers overlain by thick coastal sediments; 2010; Article; Journal; Hydrogeology Journal; Rotzoll, Kolja ; Oki, Delwyn S.; El-Kadi, Aly I.

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Year Published: 2010

Effects of groundwater withdrawal on borehole flow and salinity measured in deep monitor wells in Hawai'i-implications for groundwater management

Water-resource managers in Hawai`i rely heavily on salinity profiles from deep monitor wells to estimate the thickness of freshwater and the depth to the midpoint of the transition zone between freshwater and saltwater in freshwater-lens systems. The deep monitor wells are typically open boreholes below the water table and extend hundreds of feet...

Rotzoll, Kolja
Effects of groundwater withdrawal on borehole flow and salinity measured in deep monitor wells in Hawai'i-implications for groundwater management; 2010; SIR; 2010-5058; Rotzoll, Kolja

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Year Published: 2010

Streamflow, suspended-sediment, and soil-erosion data from Kaulana and Hakioawa watersheds, Kaho'olawe, Hawai'i,

Various events over the last two centuries have destroyed the vegetation and caused rapid soil erosion on large areas of the small, arid, windy tropical shield-volcano island of Kaho`olawe, Hawai`i. These activities were largely halted in the 1990s, and efforts have been made to restore the island's vegetation in order to stem erosion. In 2003,...

Izuka, Scot K.; Abbott, Lyman L.
Streamflow, suspended-sediment, and soil-erosion data from Kaulana and Hakioawa watersheds, Kaho'olawe, Hawai'i,; 2010; OFR; 2010-1182; Izuka, Scot K.; Abbott, Lyman L.

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Year Published: 2010

Hawaii StreamStats; a web application for defining drainage-basin characteristics and estimating peak-streamflow statistics

Reliable estimates of the magnitude and frequency of floods are necessary for the safe and efficient design of roads, bridges, water-conveyance structures, and flood-control projects and for the management of flood plains and flood-prone areas. StreamStats provides a simple, fast, and reproducible method to define drainage-basin characteristics...

Rosa, Sarah N.; Oki, Delwyn S.
Hawaii StreamStats; a web application for defining drainage-basin characteristics and estimating peak-streamflow statistics; 2010; FS; 2010-3052; Rosa, Sarah N.; Oki, Delwyn S.

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Year Published: 2010

Terrigenous sediment provenance from geochemical tracers, south Molokai reef flat, Hawaii

Land-derived runoff is one of the greatest threats to coral-reef health. Identification of runoff sources is an important step in erosion mitigation efforts. A geochemical sediment provenance study was done in uplands and across the adjacent fringing reef on the southeast shore of Molokai, Hawaii, to determine whether sediment runoff originated...

Takesue, R.K.
Terrigenous sediment provenance from geochemical tracers, south Molokai reef flat, Hawaii; 2010; OFR; 2010-1155; Takesue, R. K.

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Year Published: 2010

Rainfall, discharge, and water-quality data during stormwater monitoring, H-1 storm drain, Oahu, Hawaii, July 1, 2009, to June 30, 2010

Storm runoff water-quality samples were collected as part of the State of Hawaii Department of Transportation Stormwater Monitoring Program. The program is designed to assess the effects of highway runoff and urban runoff collected by the H-1 storm drain on the Manoa-Palolo Drainage Canal. This report summarizes rainfall, discharge, and water-...

Presley, Todd K.; Jamison, Marcael T.J.
Rainfall, discharge, and water-quality data during stormwater monitoring, H-1 storm drain, Oahu, Hawaii, July 1, 2009, to June 30, 2010; 2010; OFR; 2010-1161; Presley, Todd K.; Jamison, Marcael T. J.

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Year Published: 2010

Kiholo Bay, Hawaii, earthquake sequence of 2006: Relationship of the main shock slip with locations and source parameters of aftershocks

We study the source process of the Kīholo Bay earthquake (MW 6.7), which occurred beneath the northwest part of the Island of Hawai‘i on 15 October 2006, and static stress drops of small earthquakes that occurred in 2006 and 2007 around the main shock including aftershocks. We relocate the aftershocks to determine the fault plane from the two...

Yamada, Takuji; Okubo, Paul G.; Wolfe, Cecily
Yamada, Takuji, Okubo, P.G., and Wolfe, C.J., 2010, Kīholo Bay, Hawai‘i, earthquake sequence of 2006: Relationship of the main shock slip with locations and source parameters of aftershocks: Journal of Geophysical Research, v. 115, B08304, 12 p., doi:10.1029/2009JB006657.

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Year Published: 2010

Flood-Frequency Estimates for Streams on Kaua`i, O`ahu, Moloka`i, Maui, and Hawai`i, State of Hawai`i

This study provides an updated analysis of the magnitude and frequency of peak stream discharges in Hawai`i. Annual peak-discharge data collected by the U.S. Geological Survey during and before water year 2008 (ending September 30, 2008) at stream-gaging stations were analyzed. The existing generalized-skew value for the State of Hawai`i was...

Oki, Delwyn S.; Rosa, Sarah N.; Yeung, Chiu W.
Flood-Frequency Estimates for Streams on Kaua`i, O`ahu, Moloka`i, Maui, and Hawai`i, State of Hawai`i; 2010; SIR; 2010-5035; Oki, Delwyn S.; Rosa, Sarah N.; Yeung, Chiu W.

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 Department of Interior UAS pilots
December 31, 2018

UAS pilots at Kilauea

Department of Interior UAS pilots from left to right – Elizabeth Pendleton (USGS, Woods Hole, MA), Colin Milone (Office of Aviation Services, AK), John Vogel (USGS; Flagstaff, AZ), Sandy Brosnahan (USGS, Woods Hole, MA), Brandon Forbes (USGS; Tucson, AZ), Chris Holmquist-Johnson (USGS; Fort Collins, CO), Hannah Dietterich (USGS; Anchorage, AK), and Emily Sturdivant (USGS,

...
December 31, 2018

Hovering Above—UAS’ Role in the 2018 Kīlauea Volcano Eruption Response

The 2018 Kīlauea Volcano eruption marked the first time the federal government used Unmanned Aircraft Systems (UAS) to assist in an eruption response in the United States. The UAS were used to survey areas otherwise inaccessible or too hazardous for field crews or manned aircraft, collect multiple types of data, and provide 24/7 real-time situational awareness at Kīlauea

...
View from the sky of a massive lava flow with glowing lava and smoke coming from a fissure in the earth.
December 31, 2018

Fissure 8 cone and 8-mile lava flow

An aerial view, collected from a USGS UAS, of Hawai‛i’s fissure 8 cone, and the start of the 8-mile lava flow to reach the ocean entry point.

December 31, 2018

Hovering Above—UAS’ Role in the 2018 Kīlauea Volcano Eruption (AD)

The 2018 Kīlauea Volcano eruption marked the first time the federal government used Unmanned Aircraft Systems (UAS) to assist in an eruption response in the United States. The UAS were used to survey areas otherwise inaccessible or too hazardous for field crews or manned aircraft, collect multiple types of data, and provide 24/7 real-time situational awareness at Kīlauea

...
progression of the magmatic intrusion from Kīlauea
December 31, 2018

progression of the magmatic intrusion from Kīlauea

Earthquakes (red dots) track the progression of the magmatic intrusion from Kīlauea Volcano's middle East Rift Zone to the lower East Rift Zone between April 30 and May 3, 2018. Orange triangles show the locations of fissure 1 (right), which erupted on May 3, and Pu‘u ‘Ō‘ō (left). The earthquakes shown here are well-located with magnitudes less than 3.5 and depths

...
November 29, 2018

Impact of Future Climate and Non-Natives on HI's Aquatic Ecosystems

A warming climate will have fundamental impacts on freshwater, a critical driver of tropical island ecosystems. Declining baseflows are of particular concern as they threaten to interrupt the link between the freshwater habitats of adult migratory fish and the marine environments where their larvae grow and disperse, especially where habitat availability is already limited

...
Image of yellow bat against blue and red background.
November 9, 2018

Near-infrared image of a bat in flight

A near-infrared image of a Hawaiian Hoary bat in flight is part of a project to measure bat activity on a wind energy site on Oʻahu, Hawaiʻi.

November 7, 2018

3D model of Pu‘u ‘Ō‘ō's crater

This 3D model of Pu‘u ‘Ō‘ō's crater was created from thermal images during an overflight of the cone. The deepest portion of the crater is about 320 meters (1050 feet) below the crater floor that existed prior to April 30.

panoramic view, Hawai‘i Volcanoes National Park's Crater Rim Drive
October 16, 2018

panoramic view, Hawai‘i Volcanoes National Park's Crater Rim Drive

In this panoramic view, Hawai‘i Volcanoes National Park's Crater Rim Drive (left foreground) disappears into the enormous void created by the collapse of Halema‘uma‘u and portions of the Kīlauea caldera floor during the dramatic events at the summit of the volcano in May-August 2018.

September 11, 2018

Kīlauea Summit

The Unmanned Aircraft Systems (UAS) team completed its mission at Kīlauea Volcano's summit, mapping changes within the caldera. Since August 4, 2018, the number of earthquakes at the summit have decreased and the rate of subsidence has stabilized. Sulfur dioxide (SO2) emission rates at the summit is less than 200 tonnes/day, which is lower than at any time since

...
September 5, 2018

Close Up of Cone Forming - Kīlauea Lower East Rift Zone

A closer view of the small cone forming on the floor of crater within fissure 8 today (Sept. 5). By this morning, bits of molten lava emitted from the cone every few seconds had built it up to an estimated height of around 3-4 m (about 10-13 ft).

September 4, 2018

Kīlauea lower East Rift Zone

On September 4-7, the Unmanned Aircraft Systems team flew several missions documenting changes within fissure 8 on Kīlauea's lower East Rift Zone. On September 4, lava erupted on the crater floor within the vent, building a small cone on the floor and creating a flow that did not extend beyond the vent walls. On September 5, gas bursts briefly lifted the crust over a small

...
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fissures were characterized by low eruption rates
April 25, 2019

May 3, 2019, marks the one-year anniversary of the start of Kīlauea Volcano's 2018 lower East Rift Zone eruption. Over the past year, USGS Hawaiian Volcano Observatory (HVO) geologists and collaborators have been closely studying the vast amount of data collected during the summer eruption. Now is a good time to explore what's been learned, and what's still unfolding.

floor of Mauna Loa caldera floor with blue sky in the background
April 24, 2019

Routine visit to Mauna Loa summit.

progression of the magmatic intrusion from Kīlauea
April 18, 2019

When a major geologic event occurs, scientists who study such events and the people who are directly or indirectly impacted by it seek to understand its cause. Often, a first step toward that understanding is to rule out what did not cause the event. 

USGS
April 16, 2019

Details about two upcoming talks presented by HVO scientists on April 23 and May 2 are posted.
 

This is a photo of one of the large fissures in the Southwest Rift Zone.
April 13, 2019

Magnitude-5.3 earthquake east of Kalaoa, Island of Hawai‘i

USGS
April 12, 2019

Here's a riddle for you—which large land holder on the Big Island condemns property at will, holds liens on large parts of the island, and doesn't pay a cent of taxes?

HVO scientists measure a GPS instrument
April 12, 2019

HVO scientists inspect monitoring instruments on Mauna Loa. 

high-precision GPS unit
April 11, 2019

In February 2019, the USGS Hawaiian Volcano Observatory (HVO) released a preliminary map of lava flow thicknesses for Kīlauea Volcano's 2018 lower East Rift Zone eruption.

USGS
April 10, 2019

HVO Scientist-in-Charge Tina Neal talked about the status of Kīlauea and Mauna Loa volcanoes.

USGS
April 10, 2019

Geologic map of the central-southeast flank of Mauna Loa volcano, Island of Hawaiʻi, Hawaiʻi: USGS Scientific Investigations Map 2932–B 

USGS
April 10, 2019

Digital database of the geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawaiʻi: USGS Data Series 1111 

 small amounts of sulfur dioxide
April 4, 2019

The end of Kīlauea's 2018 eruption this past September was accompanied by an enormous decrease in the amount of sulfur dioxide gas (SO2) emitted from the volcano. This has led to beautifully clear skies gracing the Island of Hawai‘i, particularly noticeable on the west side, where the volcanic pollution known as vog chronically collected in past years.

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