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: 67
Date published: June 15, 2018
Status: Active

Preliminary Landslide Susceptibility Maps and Data for Hawaii

Landslide Susceptibility Data and Maps provide tools for hazard assessment prior to an event that may cause landslides.

Date published: June 6, 2018
Status: Active

Using Plant Physiologic Responses to Environmental Conditions to Improve Species and Habitat Management in Hawaii

Recent studies show that past and ongoing environmental changes have been substantial and have likely already affected conservation efforts in Hawai‘i. Much of the state has experienced substantial drying, including decreases in mean annual precipitation since the 1920s, longer rainless periods, and decreasing stream flow. Temperatures have been increasing in Hawai‘i for the last 40 years,...

Date published: May 1, 2018
Status: Active

Bird Banding Laboratory

The Bird Banding Laboratory (BBL) is an integrated scientific program established in 1920 supporting the collection, archiving, management and dissemination of information from banded and marked birds in North America.  This information is used to monitor the status and trends of resident and migratory bird populations. Because birds are good indicators of the health of the environment, the...

Date published: January 18, 2018
Status: Active

National Assessment of Coastal Vulnerability to Sea Level Rise

The original national coastal vulnerability index (CVI) assessment was motivated by expected accelerated sea-level rise (SLR) and the uncertainty in the response of the coastline to SLR. This research was conducted between 1999 and 2001, and is currently being updated using new data sources and methodology. This original study was part of the ...

Date published: January 18, 2018
Status: Active

Long-Term Coastal Change

Goals of this task include developing and improving coastal-change assessments and supporting long-term planning and decision making to ensure sustainable coastal economies, infrastructure, and ecosystems.

Date published: January 11, 2018
Status: Completed

Studies on the Rapidly Eroding Reef

This study focuses on assessing changes in vegetation cover and composition inside and outside a fenced exclosure within the USGS Ridge-to-Reef study area on the island of Moloka‘i. This information will be delivered to federal, state, and private land managers who are trying to determine best management practices to reduce erosion and sediment runoff from this dry habitat which has been...

Date published: December 29, 2017
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: December 27, 2017
Status: Completed

Adaptation in Montane Plants

Montane plant communities in widely separated intact natural environments of the world have responded to changes in precipitation and temperature regimes by shifting both margins and core distributional ranges upward in elevation.  Reduced evapotranspiration rates in cooler climate zones at higher elevation may compensate for less precipitation and higher temperatures within species’ former...

Date published: November 21, 2017
Status: Active

Efficacy of Avian Botulism Surveillance and Mitigation Using Detection Canines

Avian botulism causes waterbird mortality in Hawai‘i's wetlands and elsewhere. We will evaluate using trained scent-detection canines (sniffer dogs) as a new tool to survey for the presence of avian botulism. Biologists will compare variables influencing detection probability and detection rates with traditional search methods. The pilot study will test the feasibility of this approach as a...

Date published: September 18, 2017
Status: Active

Webinar: Rainfall Variability and Drought in the Hawaiian Islands

View this webinar to learn about the state of the science on drought in Hawai'i.

Contacts: Abby Frazier
Date published: August 11, 2017
Status: Completed

Invasive Mammals of the Pacific

The terrestrial biota of the Central Pacific is primarily defined by its degree of isolation.  At the center lies the Hawaiian Archipelago, which is more than 3,200 km from any continental land mass.  After tens of millions of years of evolutionary isolation from all mammals except bats, islands of the Central Pacific were quite suddenly besieged by a number of alien rodents, carnivores and...

Filter Total Items: 88
Date published: January 1, 2019

Projected flood extent polygons and flood depth points based on 10-, 50-, 100-, and 500-year wave-energy return periods, with and without coral reefs, for the State of Hawaii (the islands of Hawaii, Kahoolawe, Kauai, Lanai, Maui, Molokai, Niihau, and Oahu

This part of the data release presents projected flooding extent polygon (flood masks) and flooding depth points (flood points) shapefiles based on wave-driven total water levels for the State of Hawaii (the islands of Hawaii, Kahoolawe, Kauai, Lanai, Maui, Molokai, Niihau, and Oahu). For each island there are 8 associated flood mask and flood depth shapefiles: one for

Date published: January 1, 2019

Sediment grain-size distributions of three carbonate sand layers in Anahola Valley, Kaua'i, Hawai'i

This portion of the data release presents sediment grain-size data from samples collected from Anahola Valley, Kaua`i, Hawai`i in November, 2015 (USGS Field Activity 2015-671-FA). 63 sand and mud samples were taken from sediment cores that were collected using a ‘Russian’ corer (a hand-held, side-filling peat auger) from two site locations. Site locations were

Date published: January 1, 2019

Coral disease data by transect, West Hawaii, 2011

Observations of coral disease and health indicators were documented by scuba divers along pre-determined transects and are presented here in comma-separated format. Included in the table are coral species observed, colony size, types and number of indicators observed, and a size range of indicators observed.

Date published: January 1, 2019

Deployments of autonomous, GPS ocean ocean-surface drifters, Makua, Kauai, USA, August 2016

Satellite-tracked, DGPS-equipped Lagrangian surface-current drifter deployments were conducted over 6 days between 30 July and 4 August 2016 at various locations and stages of the tide over the coral reef off Makua, HI. The drifters internally logged their location every 1 minute, and they transmitted their positions to satellites every 5 minutes. A drogue was attached to the drifters at 1

Date published: January 1, 2019

Coral Point Count (CPCe) summary data by transect, West Hawaii, 2010-2011

Coral Point Count with Excel extensions (CPCe; Kohler and Gill, 2006) was used to help calculate percent of coral cover or other benthic substrates from a randomly selected subset of seafloor photographs collected on the west Hawaii Island coast.

Date published: January 1, 2019

Nearshore Electrical Resistivity Tomography (ERT) profile data, Makua, Kauai, USA, August 2016

Along-shore surface-based 2D electrical resistivity tomography (ERT) surveys were collected in the nearshore region of Makua, Kauai.

Date published: January 1, 2019

Surface-water temperature, salinity, pH, dissolved oxygen, and turbidity data from nearshore coral reef locations along the west coast of Hawaii Island (2010-2013)

Spatial measurements of water temperature, specific conductance, salinity, pH, dissolved oxygen, and turbidity between 0.25 and 0.50 m water depth were collected every 10-seconds along and across shore at 12 principal study areas along west and east Hawaii Island. Measurements were made between 2010 and 2013 during different seasons and tide states over the course of 1.0 to 2.5 hours to

Date published: January 1, 2019

Time-series oceanographic data collected off Makua, Kauai, USA, August 2016

Time-series data of water-surface elevation, wave height, water-column currents, temperature were acquired for 6 days off the north coast of the island of Kauai, Hawaii in support of a study on the coastal circulation patterns and groundwater input to the coral reefs of Makua.

Date published: January 1, 2019

Vibracore photographs, computed tomography scans, and core-log descriptions from Anahola Valley, Kaua'i, Hawai'i

This portion of the data release contains information on vibracores that were collected by the U.S. Geological Survey in Anahola Valley, Kaua'i, Hawai'i in 2015. Sites were cored in order to identify potential tsunami deposits and describe wetland stratigraphy. These vibracores contain mud, peat, volcanic sands, and carbonate sands, reflecting deposition in a variety of coastal en

Date published: January 1, 2019

Time-series oceanographic data of currents and waves from bottom-mounted instrument packages off Waiakane, Molokai, HI, 2018

Time series data of water surface elevation, wave height, and water column currents and temperature were acquired at seven locations for 86 days off of Waiakane on the south coast of the island of Molokai, Hawaii, in support of a study on the coastal circulation patterns and the transformation of surface waves over the coral reefs.

Date published: January 1, 2019

Radiocarbon data from coastal wetlands on the Hawaiian islands of Kaua'i, O'ahu, and Hawai'i

This portion of the data release presents radiocarbon age data from 66 samples collected from Anahola Valley (Kaua'i), Kahana Valley (O'ahu), and Pololu Valley (Hawai'i). Sample ages were determined by the National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility. The data are provided in a comma-delimited spreadsheet (.csv).

Date published: January 1, 2019

Near-surface measurements of Conductivity-Temperature-Depth (CTD) data, Makua, Kauai, USA, August 2016

Transects of near-surface seawater properties were collected over the fringing reef off Makua, HI, on the north shore of Kauai using a Conductivity-Temperature-Depth (CTD) logger, either hand-carried or mounted to a kayak. The instrument returns temperature, salinity as a function of depth, and latitude/longitude.

Filter Total Items: 297
Map showing lower East Rift Zone lava flows and fissure
July 24, 2018

Map as of 10:00 a.m. HST, July 24, 2018

Thermal map of fissure system and lava flows
July 24, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Tuesday, July 24.

Map showing lower East Rift Zone lava flows and fissure
July 23, 2018

Map as of 1:00 p.m. HST, July 23, 2018.

Map showing lower East Rift Zone lava flows and fissure
July 22, 2018

As of 2:00 p.m. HST, July 22, 2018, the lava flow margins had not expanded since the previous map, so no red areas (indicating expansion) appear on this map.

Thermal map of fissure system and lava flows
July 21, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Saturday, July 21

Map showing lower East Rift Zone lava flows and fissure
July 19, 2018

Map as of 12:00 p.m. HST, July 19, 2018

Thermal map of fissure system and lava flows
July 19, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Thursday, July 19

Map showing lower East Rift Zone lava flows and fissure
July 18, 2018

Map as of 10:00 a.m. HST, July 18, 2018.

Thermal map of fissure system and lava flows
July 17, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Tuesday, July 17.

Map of Kīlauea East Rift Zone lava flows and fissures
July 16, 2018

Map as of 1:00 p.m. HST, July 16, 2018

Thermal map of fissure system and lava flows
July 14, 2018

This thermal map shows the Fissure 8 flow as of 6 am on Saturday, July 14

Thermal map of fissure system and lava flows
July 12, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Thursday, July 12

Filter Total Items: 111
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Year Published: 2013

The magnetic tides of Honolulu

We review the phenomenon of time-stationary, periodic quiet-time geomagnetic tides. These are generated by the ionospheric and oceanic dynamos, and, to a lesser-extent, by the quiet-time magnetosphere, and they are affected by currents induced in the Earth's electrically conducting interior. We examine historical time series of hourly magnetic-...

Love, Jeffrey J.; Rigler, Erin Joshua
The magnetic tides of Honolulu; 2013; Abstract or summary; Conference publication; Progress in EM Induction Studies of Crust and Mantle From Land, Sea, Air, and Space lll Posters; Love, Jeffrey J.;Rigler, Erin Joshua.

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Year Published: 2013

Freshwater and drought on Pacific Islands

Izuka, Scot K.; Keener, Victoria
Freshwater and drought on Pacific Islands; 2013; Book chapter; Book; Climate Change and Pacific Islands: Indicators and Impacts: Report for the 2012 Pacific Islands Regional Climate Assessment; Scot K Izuka; Keener, Victoria

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Year Published: 2013

Trends and shifts in streamflow in Hawaii, 1913-2008

This study addresses a need to document changes in streamflow and base flow (groundwater discharge to streams) in Hawai'i during the past century. Statistically significant long-term (1913-2008) downward trends were detected (using the nonparametric Mann-Kendall test) in low-streamflow and base-flow records. These long-term downward trends are...

Bassiouni, Maoya; Oki, Delwyn S.
Trends and shifts in streamflow in Hawaii, 1913-2008; 2013; Article; Journal; Hydrological Processes; Bassiouni, Maoya; Oki, Delwyn S.

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Year Published: 2012

Availability and distribution of low flow in Anahola Stream, Kauaʻi, Hawaiʻi

Anahola Stream is a perennial stream in northeast Kauaʻi, Hawaiʻi, that supports agricultural, domestic, and cultural uses within its drainage basin. Beginning in the late 19th century, Anahola streamflow was diverted by Makee Sugar Company at altitudes of 840 feet (upper intake) and 280 feet (lower intake) for irrigating sugarcane in the Keālia...

Cheng, Chui Ling; Wolff, Reuben H.
Availability and distribution of low flow in Anahola Stream, Kauaʻi, Hawaiʻi; 2012; SIR; 2012-5264; Cheng, Chui Ling; Wolff, Reuben H.

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Year Published: 2012

Low-flow characteristics of streams under natural and diversion conditions, Waipiʻo Valley, Island of Hawaiʻi, Hawaiʻi

Over the past 100 years, natural streamflow in Waipiʻo Valley has been reduced by the transfer of water out of the valley by Upper and Lower Hāmākua Ditches. The physical condition and diversion practices along the two ditch systems have varied widely over the years, and as a result, so have their effects on natural streamflow in Waipiʻo...

Fontaine, Richard A.
Low-flow characteristics of streams under natural and diversion conditions, Waipiʻo Valley, Island of Hawaiʻi, Hawaiʻi; 2012; SIR; 2011-5118; Fontaine, Richard A.

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Year Published: 2012

Development of invertebrate community indexes of stream quality for the islands of Maui and Oahu, Hawaii

In 2009-10 the U.S. Geological Survey (USGS) collected physical habitat information and benthic macroinvertebrates at 40 wadeable sites on 25 perennial streams on the Island of Maui, Hawaiʻi, to evaluate the relations between the macroinvertebrate assemblages and environmental characteristics and to develop a multimetric invertebrate community...

Wolff, Reuben H.

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Year Published: 2012

Measurements of seepage losses and gains, East Maui Irrigation diversion system, Maui, Hawaiʻi

The U.S. Geological Survey conducted a field study from March to October 2011 to identify ditch characteristics and quantify seepage losses and gains in the East Maui Irrigation (EMI) diversion system, east Maui, Hawaiʻi. The EMI diversion system begins at Makapipi Stream in the east and ends at Māliko Gulch in the west. It consists of...

Cheng, Chui Ling
Measurements of seepage losses and gains, East Maui Irrigation diversion system, Maui, Hawaiʻi; 2012; OFR; 2012-1115; Cheng, Chui Ling

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Year Published: 2012

Sources of suspended sediment in the Waikele watershed, Oʻahu, Hawaiʻi

Data from streamflow/sediment gages and measurements of changes in channel-bed sediment storage were gathered between October 1, 2007, and September 30, 2010, to assess the sources of suspended sediment in the Waikele watershed, Oʻahu, Hawaiʻi. Streamflow from the watershed averaged 33 cubic feet per second during the study period, with...

Izuka, Scot K.
Sources of suspended sediment in the Waikele watershed, Oʻahu, Hawaiʻi; 2012; SIR; 2012-5085; Izuka, Scot K.

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Year Published: 2012

Groundwater availability in the Lahaina District, west Maui, Hawai'i

Most of the public water supply in the Lahaina District, west Maui, Hawai'i, is pumped from a freshwater lens in volcanic rocks. Because of population growth, groundwater withdrawals from wells in this area are expected to increase from about 5.8 million gallons per day in 2007 to more than 11 million gallons per day by 2030. Currently (2011), the...

Gingerich, Stephen B.; Engott, John A.
Groundwater availability in the Lahaina District, west Maui, Hawai'i; 2012; SIR; 2012-5010; Gingerich, Stephen B.; Engott, John A.

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Year Published: 2012

Numerical simulation of flow in deep open boreholes in a coastal freshwater lens, Pearl Harbor Aquifer, O‘ahu, Hawai‘i

The Pearl Harbor aquifer in southern O‘ahu is one of the most important sources of freshwater in Hawai‘i. A thick freshwater lens overlays brackish and saltwater in this coastal aquifer. Salinity profiles collected from uncased deep monitor wells (DMWs) commonly are used to monitor freshwater-lens thickness. However, vertical flow in...

Rotzoll, Kolja
Numerical simulation of flow in deep open boreholes in a coastal freshwater lens, Pearl Harbor Aquifer, O‘ahu, Hawai‘i; 2012; SIR; 2012-5009; Rotzoll, Kolja

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Year Published: 2011

From ridge to reef—linking erosion and changing watersheds to impacts on the coral reef ecosystems of Hawai‘i and the Pacific Ocean

Coral reef ecosystems are threatened by unprecedented watershed changes in the United States and worldwide. These ecosystems sustain fishing and tourism industries essential to the economic survival of many communities. Sediment, nutrients, and pollutants from watersheds are increasingly transported to coastal waters, where these contaminants...

Stock, Jonathan D.; Cochran, Susan A.; Field, Michael E.; Jacobi, James D.; Tribble, Gordon
From ridge to reef—linking erosion and changing watersheds to impacts on the coral reef ecosystems of Hawai‘i and the Pacific Ocean; 2011; FS; 2011-3049; Stock, Jonathan D.; Cochran, Susan A.; Field, Michael E.; Jacobi, James D.; Tribble, Gordon

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Year Published: 2011

A water-budget model and assessment of groundwater recharge for the Island of Hawaiʻi

Concern surrounding increasing demand for groundwater on the Island of Hawaiʻi, caused by a growing population and an increasing reliance on groundwater as a source for municipal and private water systems, has prompted a study of groundwater recharge on the island using the most current data and accepted methods. For this study, a daily water...

Engott, John A.
A water-budget model and assessment of groundwater recharge for the Island of Hawaiʻi; 2011; SIR; 2011-5078; Engott, John A.

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June 1, 2020

Video of Kīlauea summit from May 29 overflight

This wide-angle video was captured during a helicopter overflight on May 29, and skirts the southern border of Halema‘uma‘u crater. The water lake, filling the bottom of the crater, was tan and brown today, and showed no significant changes. USGS video by M. Patrick.

May 11, 2020

Halema‘uma‘u rockslide on May 11, 2020

A small rockslide occurred today on the south wall of Halema‘uma‘u, sending boulders into the water at the bottom of the crater. USGS video by M. Patrick.

Color photograph of technician on volcanic vent
May 6, 2020

HVO technician inspects power/communication station at Pu‘u ‘Ō‘ō

HVO technician inspects power/communication station at Pu‘u ‘Ō‘ō on on April 16, 2020. USGS photos by F. Younger.

A scientists observes a volcano crater
April 6, 2020

A geologists makes observations at Kilauea

Clear weather allowed HVO geologists to make observations and take measurements of the water pond at Kīlauea's summit. No major changes were observed, and the water level continues to slowly rise. Note the former HVO observation tower can be seen above the geologist's helmet. 

March 26, 2020

Timelapse of water rising in Halema‘uma‘u

This timelapse sequence shows the water pond in Halema‘uma‘u Crater, at Kīlauea's summit, between November 1, 2019, and March 26, 2020. Over this time the water level rose approximately 14 meters (46 feet), equivalent to 67 cm (about 2 feet) per week. The timelapse shows one image per day (with a few cloudy images removed), and is looped several times.

March 18, 2020

Snow at Mauna Loa summit

Stormy weather moved through the islands over the past day, producing snow at the higher elevations of Mauna Kea and Mauna Loa. This sequence shows the webcam images at the summit of Mauna Loa, and the variable weather throughout the day.

Hawai'i 'Amakihi (Chlorodrepanis virens).
March 12, 2020

Hawai'i 'Amakihi (Chlorodrepanis virens).

Hawai'i 'Amakihi (Chlorodrepanis virens).

Scientist holds rope leading to Unoccupied Aircraft System
January 31, 2020

Unoccupied Aircraft System with water sampler

The sampling mechanism (on blue tarp) is prepared and the Unoccupied Aircraft System (UAS) is inspected just before take off to collect water from the Halema‘uma‘u crater lake. Brightly colored flagging tape tied to a cable attached to the UAS indicated depth as the sampling tool was lowered into the water. 

January 29, 2020

What will you do when Earth’s largest active volcano erupts?

In 2019, the Volcano Alert Level for Mauna Loa was elevated from “NORMAL” to “ADVISORY” due to increased seismicity and deformation at the volcano. This alert level does not mean an eruption is imminent, but it is a fact that Mauna Loa, which has erupted 33 times since 1843 (most recently in 1984), will erupt again. What will you do when it does? USGS Hawaiian Volcano

January 28, 2020

Seismicity of the 2018 Kīlauea Volcano eruption

The 2018 Kīlauea eruption produced unprecedented levels of seismicity in the volcano’s instrumented history. The USGS Hawaiian Volcano Observatory documented about 80,000 earthquakes during the three-month-long eruption, starting with the dramatic collapse of the Puʻu ʻŌʻō cone on April 30 and ending with the final Kīlauea summit caldera collapse event on August 5. The

January 21, 2020

Video of Fissure 8 flyover on January 21, 2020

This video clip shows a flyover of fissure 8 on Jan. 21. During the 2018 eruption, lava spilled out from the cone into a channel that extended towards the north. Lava traveled approximately 13 km (8 miles) to reach the ocean at Kapoho Bay. USGS video by M. Patrick.

January 21, 2020

Thermal video of fissure 8 on January 21, 2020

This thermal video of the fissure 8 cone shows that small areas of higher temperatures (greater than 100 degrees Celsius, or 212 degrees Fahrenheit) are present on the cone. Those hotter areas likely represent residual heat in the cone and the underlying fissure. USGS video by M. Patrick.

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HVO scientists performed some preliminary tests of the water at the caldera rim
October 29, 2019

Video of the water sampling at Kīlauea summit with an unmanned aircraft system

image related to volcanoes. See description
October 28, 2019

Water sampling at Kīlauea summit with an unmanned aerial system

image related to volcanoes. See description
October 25, 2019

Continued slow rise of water level at bottom of Halema‘uma‘u

image related to volcanoes. See description
October 19, 2019

Water pond at Kīlauea summit continues to rise and enlarge

The Great Hawaii ShakeOut: Get ready toàDrop, Cover, and Hold on!...
October 17, 2019

HVO staff practice Drop, Cover, and Hold during the Great Hawaii ShakeOut

Volcano crater
October 10, 2019

New USGS video posted online:  "Water appears in Halema‘uma‘u"

image related to volcanoes. See description
September 27, 2019

Continued slow rise of water at the bottom of Halema‘uma‘u

image related to volcanoes. See description
September 24, 2019

HVO measures water table at Keller Well

Screen shot of a USGS geonarrative showing Kilauea
September 19, 2019

A new USGS geonarrative provides a brief overview of recent Kīlauea eruptions, highlighting the circumstances leading up to and summarizing the 2018 events.

image related to volcanoes. See description
September 17, 2019

Stable temperatures at Halema‘uma‘u water pond

image related to volcanoes. See description
September 14, 2019

Halema‘uma‘u water pond on September 14

image related to volcanoes. See description
September 10, 2019

Halema‘uma‘u water pond on September 10

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