Unified Interior Regions

Hawaii

The Pacific Region has nine USGS Science Centers in California, Nevada, and Hawaii. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

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Filter Total Items: 297
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: 111
Publication Thumbnail
Year Published: 1996

Summary of the Oahu, Hawaii, Regional Aquifer-System Analysis

Oahu, the third largest of the Hawaiian islands, is formed by the eroded remnants of two elongated shield volcanoes with broad, low profiles. Weathering and erosion have modified the original domed surfaces of the volcanoes, leaving a landscape of deep valleys and steep interfluvial ridges in the interior highlands. The Koolau Range in eastern...

Nichols, William D.; Shade, Patricia J.; Hunt, Charles D.
Summary of the Oahu, Hawaii, Regional Aquifer-System Analysis; 1996; PP; 1412-A; Nichols, William D.; Shade, Patricia J.; Hunt, Charles D., Jr.

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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Map of selected earthquakes beneath a portion of southeast Hawaii
December 31, 2018

Map of selected earthquakes beneath a portion of southeast Hawaii

Map of selected earthquakes beneath a portion of southeast Hawai`i from May 4, 2018 to March 14, 2019, showing principally aftershocks following May 4, 2018 M6.9 earthquake. Black dots indicate epicenters of 13,083 earthquakes located during this time interval; yellow stars show locations of the M6.9 earthquake and the March 13, 2019 M5.5 earthquake.

Equipment set up on the ground below a wind turbine.
December 31, 2018

Equipment set up at wind energy site

Bat detection and monitoring equipment set up below a turbine at an Oʻahu, Hawaiʻi wind energy site.

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

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

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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