Regions

Hawaii

States L2 Landing Page Tabs

Filter Total Items: 60

Invalid Scald ID.

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: 55
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.

Structure datasets for the nation from The National Map
April 20, 2016

USGS data portray selected structures data, including the location and characteristics of manmade facilities. Characteristics consist of a structure's physical form (footprint), function, name, location, and detailed information about the structure. The types of structures collected are largely determined by the needs of the disaster planning and response and homeland security organizations.

Boundaries datasets for the nation from The National Map.
April 19, 2016

Boundaries data or governmental units represent major civil areas including states, counties, Federal, and Native American lands, and incorporated places such as cities and towns.

Illustration related to the the river corridor
April 19, 2016

The National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD) are used to portray surface water on The National Map.

3D Lidar Point Cloud Image of San Francisco Bay and Golden Gate Bridge
April 19, 2016

The USIEI is a comprehensive, nationwide listing of known high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort of the USGS and NOAA with contributions from other federal agencies. The inventory supports the 3D Elevation Program and the Integrated Ocean and Coastal Mapping effort. This resource is updated in Spring and Fall.

Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

The 3DEP products and services available through The National Map consist of lidar point clouds (LPC), standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

Filter Total Items: 157
Map with thermal overlay showing active flows...
December 30, 2015

This map overlays a georeferenced thermal image mosaic onto a map of the flow field near Pu‘u ‘Ō‘ō; to show the distribution of active and recently active breakouts.

Map showing flow field changes...
December 3, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.

Small-scale map of flow field...
December 3, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i. 

Satellite image shows June 27th lava flow...
November 30, 2015

This satellite image was captured on Monday, November 30, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. 

Small-scale map of flow field...
November 12, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i. 

Map showing flow field changes...
November 12, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.

Small-scale map of flow field...
October 23, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i.

Map showing flow field changes...
October 23, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. 

Landsat satellite image shows June 27th lava flow...
October 13, 2015

This satellite image was captured on Tuesday, October 13, 2015 by the Landsat 8 satellite. 

Map showing flow field changes...
September 30, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.

Filter Total Items: 107
Publication Thumbnail
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.

Publication Thumbnail
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.

Publication Thumbnail
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.

Publication Thumbnail
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.

Publication Thumbnail
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

Publication Thumbnail
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.

Publication Thumbnail
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.

Publication Thumbnail
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.

Publication Thumbnail
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.

Publication Thumbnail
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.

Publication Thumbnail
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.

Publication Thumbnail
Year Published: 2010

Effects of Surface-Water Diversion on Streamflow, Recharge, Physical Habitat, and Temperature, Na Wai `Eha, Maui, Hawai`i

The perennial flow provided by Waihe‘e River, Waiehu Stream, ‘Īao Stream, and Waikapū Stream, collectively known as Nā Wai ‘Ehā (“The Four Streams”), made it possible for widespread agricultural activities to flourish in the eastern part of West Maui, Hawai‘i. The streams of the Nā...

Oki, Delwyn S.; Wolff, Reuben H.; Perreault, Jeff A.
Effects of Surface-Water Diversion on Streamflow, Recharge, Physical Habitat, and Temperature, Na Wai `Eha, Maui, Hawai`i; 2010; SIR; 2010-5011; Oki, Delwyn S.; Wolff, Reuben H.; Perreault, Jeff A.

Filter Total Items: 1,405
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

...
September 4, 2018

Kīlauea Lower East Rift Zone

An Unmanned Aircraft Systems overflight yesterday (September 4, 2018) showed a small cone on the floor of the crater within fissure 8. The cone formed as lava erupted from an opening on the surface of the flow that covers the crater floor.

September 3, 2018

Low-Level Spatter on New Pad of Lava

During an overflight of fissure 8 this morning, HVO geologists observed low-level spattering on the new pad of lava within the cone. Slow-moving lava had just barely entered the spillway, but was not advancing down the channel.

August 31, 2018

Time Series of Kīlauea Volcano's Lower East Rift Zone Lava-Flow Maps

During Kīlauea Volcano's lower East Rift Zone (LERZ) eruption, lava-flow maps were generated on a near-daily basis and published on the Hawaiian Volcano Observatory webpage. For the first week of the 2018 LERZ eruption, lava flows proved difficult to map, as they stayed close to the fissures in Leilani Estates, where vegetation obscured aerial views of their margins. Later

...
August 30, 2018

PubTalk 8/2018 — What on Earth is going on at Kilauea Volcano?

Title: What on Earth is going on at Kilauea Volcano?

  • First significant summit explosions in nearly a century
  • Largest summit collapse volume since at least 1800
  • Voluminous fissure eruptions feeding channelized lava flow
  • Unparalleled new opportunities for understanding the volcanic system
August 30, 2018

Kīlauea Volcano's Summit

The Unmanned Aircraft Systems (UAS) team circumnavigates the crater rim at the summit of Kīlauea Volcano, collecting data for digital elevation models that document summit changes. The volume change, from early May 2018 to present, is over 825 million cubic meters (1 billion cubic yards). The vertical collapse of the crater floor is more than 500 m (1600 ft). Limited UAS

...
Before and after views of a water fall.  First shows light flow of water over the falls, the second shows heavy flow.
August 23, 2018

Impact of Hurricane Lane on Wailuku River

Two views from the Rainbow Falls overlook, downstream of the Wailuku River streamgage near Hilo, Hawaii. The image on the left shows a typical base flow of about 35 cubic feet per second (cfs). The image on the right shows the early impact of Hurricane Lane with a flow of about 26,000 cfs taken at 8:35 a.m. HST, August 23, 2018. This U.S. Geological Survey streamgage has

...
August 21, 2018

Kīlauea Volcano's Lower East Rift Zone

An Unmanned Aircraft Systems overflight of fissure 8 on August 21, 2018, showed no incandescence within the cinder cone. Minor amounts of gases, primarily steam, rose from the north wall of the cinder cone and from areas along the lower East Rift Zone. The interior walls of the fissure 8 cone and lava channel are slumping downward and inward. The cinder cone was about 50 m

...
August 20, 2018

Changes Over Time at Kīlauea (April - August 2018)

Changes at the summit of Kīlauea between April 14 and August 20, 2018, were captured by a USGS–Hawaiian Volcano Observatory camera. This time-lapse series includes roughly one image per day. The lava lake within Halema‘uma‘u is visible in April, with overflows onto the caldera floor on April 23. The lava lake drains in early May, followed by explosive activity over the

...
August 17, 2018

View Into Fissure 8 Cinder Cone

The Unmanned Aircraft Systems (UAS) team assessed conditions at the fissure 8 cone and upper lava channel on August 17, 2018. At the time of the flight, the lava pond within the cone had crusted over with no observed incandescence. The reddish-brown rock inside the cone is the result of oxidation; the interaction of heated rock and gases causes black basaltic cinders to

...
August 16, 2018

3D Model of Fissure 8 Cone

This 3-dimensional computer model shows the structure of the fissure 8 cone on Kīlauea Volcano's lower East Rift Zone. The model was created from thermal images acquired during a helicopter overflight on August 15, 2018. The cone is currently about 30 m (100 ft) tall with a broad base. The bright white area within the cone is a small pond of lava, now largely crusted over

...
August 9, 2018

Lava Entering Ocean Near Isaac Hale Beach Park

Lava continues to enter the ocean near the Isaac Hale Beach Park on Kīlauea Volcano's lower East Rift Zone. Although lava output from fissure 8 remains low, the ocean entry was still active during HVO's helicopter overflight on August 9, 2018. Numerous small streams of lava were oozing into the ocean near Ahalanui, creating weak plumes of laze. The southern flow margin

...
Filter Total Items: 1,019
 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.

New outcrops make good geology
March 28, 2019

A good field geologist is an opportunist. Never content with what outcrops are available, she jumps at the chance to see another one, hoping that it will provide a better understanding to some question about what happened in the past.

USGS
March 27, 2019

On March 26, 2019, in response to reduced activity on the volcano, HVO lowered the Volcano Alert Level for Kīlauea's ground-based hazards from ADVISORY to NORMAL.

UAS mission documents conditions at the Overlook vent...
March 26, 2019

The 2018 Kīlauea Volcano lower East Rift Zone eruption was the first time Unmanned Aircraft Systems (UAS) were used by the Federal Government to assist with an eruption response in the U.S. The UAS (drones) surveyed areas that were too hazardous for field crews or manned aircraft to access, collected multiple types of data, and provided 24/7 real-time situational awareness.

USGS
March 26, 2019

Kīlauea's Southwest Rift Zone was more volcanically active in the late 18th- to early 19th-centurys than previously assumed.

Explosive eruption columns of ash rising
March 22, 2019

In February 1924, the surface of the lava lake at Halema‘uma‘u dropped rapidly and disappeared from view. Throughout March and April, the crater floor subsided as magma moved out of the summit reservoir into the East Rift Zone. By May 6, 1924, the floor of Halema‘uma‘u had dropped more than 180 m (about 600 ft) below the crater rim. 

Map of selected earthquakes beneath a portion of southeast Hawaii
March 15, 2019

Early Wednesday morning, just before 1AM on March 13, houses in east Hawai`i began to shake. Without a doubt, it was an earthquake. To those who endured the near-daily shaking from last summer’s collapse events at Kīlauea’s summit, this week’s earthquake was clearly different.

USGS
March 13, 2019

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-5.5 earthquake located beneath Kīlauea Volcano's south flank on Wednesday, March 13, at 12:55 a.m., HST. 

Lava flow thickness 2018
March 7, 2019

Eruption rate (how much lava comes out of the ground per unit time) is probably the best measure of volcanic activity, and the first step in that calculation is to measure lava flow thickness and area. 

USGS
February 22, 2019

2018 Kīlauea lower East Rift Zone eruption and calderal collapse described in Science paper.

USGS
February 22, 2019

USGS Fact Sheet, written by HVO scientists, won the 2018 Shoemaker Award for Communications Product Excellence for the Small Print category.

USGS
February 22, 2019

Information about how to stay informed about Hawaiian volcanoes.

Filter Total Items: 53