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Thermal map of fissure system and lava flows...
May 19, 2018

Thermal map shows the fissure system and lava flows. The two primary lava flows originate from the Fissure 20-22 area.

Kīlauea Lower East Rift Zone Fissures and Flows, May 19 at 10:00 a....
May 19, 2018

Locations of fissures and an ‘a‘ā flow

Side by side comparisons of caldera showing change.
May 18, 2018

Radar amplitude images show changes to the caldera area of Kīlauea Volcano

Kīlauea Lower East Rift Zone Fissures and Flows, May 18 at 1:00 p.m. HST
May 18, 2018

Location of the lava flow spreading

Thermal map of northeast end of fissure system...
May 18, 2018

Thermal map shows a close up of the northeastern end of the fissure system

Thermal map of northeast end of fissure system...
May 16, 2018

Thermal map shows a close up of the northeastern end of the fissure system

Kīlauea Lower East Rift Zone Fissures and Flows, May 16 at 7:00 a....
May 16, 2018

Location of the lava flow spreading from fissure 17

Kīlauea Lower East Rift Zone Fissures and Flows, May 15 at 7:00 a.m...
May 15, 2018

Location of the ‘a‘ā lava flow spreading from fissure 17

Thermal map of northeast end of fissure system...
May 15, 2018

Thermal map shows a close up of the northeastern end of the fissure system.

Thermal map of northeast end of fissure system...
May 14, 2018

Close up of the northeastern end of the fissure system.

Thermal map of the fissure system...
May 14, 2018

Thermal map shows the fissure system during an overflight of the area in Leilani Estates

Kīlauea Lower East Rift Zone Fissures and Flows, May 14 at 2:30 p.m...
May 14, 2018

Location of fissure 17. 

Filter Total Items: 110
Publication Thumbnail
Year Published: 1995

Estimated Water Use in 1990, Island of Kauai, Hawaii

The estimated total quantity of freshwater withdrawn on the island of Kauai, Hawaii, in 1990 was 370.84 million gallons per day of which 46.29 million gallons per day (12 percent) was from ground-water sources, and 324.55 million gallons per day (88 percent) was from surface-water sources. An additional estimated 40.94 million gallons per day of...

Shade, Patricia J.
Estimated Water Use in 1990, Island of Kauai, Hawaii; 1995; WRI; 93-4180; Shade, Patricia J.

Publication Thumbnail
Year Published: 1990

National water summary 1987: Hydrologic events and water supply and use

Water use in the United States, as measured by freshwater withdrawals in 1985, averaged 338,000 Mgal/d (million gallons per day), which is enough water to cover the 48 conterminous States to a depth of about 2.4 inches. Only 92,300 Mgal/d, or 27.3 percent of the water withdrawn, was consumptive use and thus lost to immediate further use; the...

Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.
Attribution: Water, Central Midwest Water Science Center, Dakota Water Science Center, , , Kansas Water Science Center, Minnesota Water Science Center, Pennsylvania Water Science Center, Texas Water Science Center, Utah Water Science Center, , Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Water Resources, Water Availability and Use Science Program, , , Region 4: Mississippi Basin, Region 6: Arkansas-Rio Grande-Texas-Gulf, Region 1: North Atlantic-Appalachian, Region 7: Upper Colorado Basin, Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, U.S. Virgin Islands, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, United States of America
National water summary 1987: hydrologic events and water supply and use; 1990; WSP; 2350; Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.

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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

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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

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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

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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

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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

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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

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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

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August 6, 2018

Overflight of Kīlauea Summit

Between mid-May and early August, 2018, the depth of Halema‘uma‘u more than tripled and its diameter more than doubled as magma from Kīlauea's shallow summit reservoir moved into the lower East Rift Zone. Evidence of subsidence is visible in this video, taken during an early morning helicopter overflight on August 6, 2018. Cracks and down-dropped blocks of the caldera 

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New outcrops make good geology
August 6, 2018

New outcrops make good geology

This aerial view of the western part of Kīlauea Volcano's caldera was taken on August 6, 2018. The down-dropped block is faulted about 120 m (400 feet) below the caldera floor. Many 19th-century lava flows are exposed in the fault scarps. Halema‘uma‘u (not visible) is to the left of this photo.

August 6, 2018

Lava Fountaining at Fissure 8

During this morning's overflight, HVO geologists observed low levels of lava fountaining within the fissure 8 spatter cone and crusted lava in the spillway and channel downstream. The significance of this change is not yet clear. Eruptions can wax and wane or pause for days to weeks before returning to high levels of lava discharge. New outbreaks in the area of the active 

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Hot, molten lava flows slowly into the ocean, and the temperature difference between lava and water is creating steam.
August 5, 2018

Viscous lava hits ocean water

A viscous pāhoehoe flow from Kilauea Volcano, Hawaiʻi , entering the ocean near Isaac Hale Beach Park on the morning of August 5, 2018.

August 3, 2018

Pāhoehoe Breakout

This lava, erupted from fissure 8 on Kīlauea Volcano's lower East Rift Zone, shows classic pāhoehoe behavior. Exposed to the air, the surface of the flow chills to form a thin crust that can be stretched or broken apart, forming pieces of crust that are "subducted" back into the molten interior. The main sound is wind noise, but crackles can also be heard as flakes of

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the sun is illuminating the volcanic gas plume from behind
June 17, 2018

When volcanic gases are released into the atmosphere, resulting plumes sometimes appear to have a faint color. Is this color indicative of a certain gas present? Answering this question requires describing what makes a plume visible in the first place.

Close-up photograph of stem, leaves and flower buds of haha plant
June 8, 2018

Caly isn't likely to wonder off off, but with a remote camera and monitoring station online 24-hours a day, USGS and partners at the State of Hawai‘i Division of Forestry and Wildlife, University of Hawai‘i, and the USFWS can learn how an extremely rare plant is responding to changes in environmental conditions.

low magnification photo shows ash particles
June 7, 2018

Small explosions that produce ashfall from Kīlauea Volcano's summit are not new. However, the mechanism, vigor, plume heights, and extent of ash fallout from the current explosive activity within Halema‘uma‘u are.

Halema‘uma‘u at the summit of Kīlauea Volcano captured from an Unmanned Aircraft Systems
June 1, 2018

With the current activity at the volcano's lower East Rift Zone and summit, it's an understatement to say that Kīlauea has been making worldwide headlines the past month.

USGS
May 29, 2018

Deflation at Kīlauea's summit has caused up to 1.5 meters (about 5 feet) of subsidence, which has stressed the faults around and within Kīlauea Caldera. 

pockets of natural gas from the burning plant material can ignite
May 24, 2018

Numerous hazards are associated with active lava flows, and USGS Hawaiian Volcano Observatory scientists have written about many of them in past Volcano Watch articles. However, it's been a while since one particular hazard—so-called "methane explosions"—has been addressed.

USGS
May 24, 2018

An explanation of magma movement from Kīlauea's summit through the volcano's East Rift Zone and to the eruption site(s) in lower Puna.

Image: Monitoring Gas Emissions from Kilauea Volcano
May 17, 2018

With ash eruptions occurring from Kilauea’s summit this week, there is a threat of an even larger steam-driven violent explosion. Such an eruption could happen suddenly and send volcanic ash 20,000 feet into the air, threatening communities for miles.

overall vigor of fissure appeared to have dropped from the previous two days
May 17, 2018

False rumors about the ongoing volcanic activity at the summit and lower East Rift Zone of Kīlauea Volcano are causing unnecessary anxiety and confusion. We encourage everyone to check the source of any information you read or hear to be sure that it's factual, accurate, and timely.

USGS
May 14, 2018

Addresses speculative stories, rumors and blogs about the stability of the south flank of Kīlauea and the potential for a catastrophic collapse that could generate a Pacific-wide tsunami.

distribution of ballistics and tephra from the 1924 phreatic explosions
May 11, 2018

Last week's Volcano Watch focused on the East Rift Zone eruption, which continues to impact the lower Puna District on the Island of Hawai‘i. Changes in the eruption are occurring daily, if not hourly, so by the time you read this article, the situation will likely have changed. Nevertheless, here's the status of the eruption as of Friday, May 11 (when this was written):

Screencapture of the International Volcanic Health Hazard Network V...
May 11, 2018

The International Volcanic Health Hazard Network (IVHHN) has a new resource for the current eruptive activity and associated hazards at Kīlauea Volcano's lower East Rift Zone and summit. Find it at https://vog.ivhhn.org