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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Map showing flow field changes...
June 4, 2015

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

Small-scale map of flow field...
June 4, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to lower Puna. 

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

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

Map showing flow field changes...
May 21, 2015

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

Landsat satellite image shows June 27th lava flow...
May 6, 2015

This satellite image was captured on Wednesday, May 6, 2015 by the Landsat 8 satellite. 

Map showing flow field changes...
April 25, 2015

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

Landsat satellite image shows June 27th flow...
April 20, 2015

This satellite image was captured on Monday, April 20, 2015 by the Landsat 8 satellite. 

Map showing flow field changes...
April 9, 2015

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

Map show flow field with thermal overlays...
April 3, 2015

This map overlays georegistered mosaics of thermal images collected during a helicopter overflight of the three areas of breakouts near Pu‘u ‘Ō‘ō on April 3.

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

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

Map showing flow field changes...
April 1, 2015

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

Map showing flow field changes...
March 24, 2015

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

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October 26, 2019

Video of UAS water sampling, Kīlauea summit

This video shows another view of the unmanned aircraft system sampling water from Halema‘uma‘u. USGS video by C. Parcheta, 26 Oct 2019.

Unoccupied Aircraft System is inspected by pilot just before take off
October 26, 2019

Unoccupied Aircraft System is inspected by pilot just before take off

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. 

October 20, 2019

Timelapse video of the water pond at Kīlauea summit

This timelapse video covers 1.5 hours and shows the motion of the water surface at the summit of Kīlauea. Along the shoreline, areas of apparent water influx are visible, often with a slightly greener color. Shifting steam on the surface attests to the high temperature of the water and the winds at the bottom of the crater. The contrast has been enhanced to highlight the

September 27, 2019

Water appears in Halemaʻumaʻu - Kīlauea Volcano

USGS Hawaiian Volcano Observatory scientists Matt Patrick and Jim Kauahikaua talk about the water that appeared at the bottom of Halemaʻumaʻu, a crater at the summit of Kīlauea Volcano, in July 2019 and continues to rise today. They address why it appeared, how it’s monitored, and its potential hazards.
 

September 22, 2019

Timelapse view of the Kīlauea summit water pond

This timelapse video covers about 30 minutes of activity at the water pond in Halema‘uma‘u at the summit of Kīlauea. Water appears to be flowing into the pond from several locations, including the southern boundary (right side in this image). A small amount of material is also seen floating on the surface at the eastern end of the pond (top of image). The video is shown

September 20, 2019

Video of circulation in the Halema‘uma‘u water pond

This time-lapse video shows circulation in the water pond in Halema‘uma‘u over a period of about 25 minutes. There appears to be an influx of water along the southern (right) shoreline. A broader eastward flow of water (toward top of image) is evident. The video is shown twice. USGS video.

September 19, 2019

Two views of the Halema‘uma‘u water pond

Views of the water pond in Halema‘uma‘u on Friday, September 6, and Monday, September 9 are shown in this video. Ripples are evident on the pond, presumably due to wind moving over the water surface. No significant changes in the pond were observed over the weekend, and the water level continues to slowly rise. USGS video by M. Patrick.

September 17, 2019

Changing activity on the surface of the Halema‘uma‘u water pond

Shown at 30x speed, this video highlights changing activity on the surface of the water pond. Steam wafting above the pond shifts in the wind, and circulation of the water is evident in areas of sharp color boundaries. USGS video by M. Patrick, 09-17-2019.

A map shows islands plotted on a latitude and longitude scale with colors that show varying ocean depth.
September 10, 2019

Overview of Hawaii high-resolution SWAN model grids

Overview of the high-resolution model grids from: “Dynamically downscaled future wave projections from SWAN model results for the main Hawaiian Islands”

view looking north across Mauna Loa's summit caldera
September 8, 2019

early morning view looking north across Moku‘āweoweo

An early morning view looking north across Moku‘āweoweo, Mauna Loa's summit caldera, from a spot near the summit cabin on the volcano's south caldera rim. Frost covered much of the caldera floor that was still shadowed, and weak steaming issued from the usual areas. Overall, there were no significant changes observed at the summit. The 1940 and 1949 cones are visible in

...
August 31, 2019

Video close-up of the fumaroles on the north side of Halema‘uma‘u

This sequence captured on August 31 begins with a close-up of the fumaroles on the north side of Halema‘uma‘u, then shows a broader view of the crater with the water pond at the bottom and a close-up of steaming and ripples on the water surface. USGS video by M. Patrick, 08-31-2019.

Filter Total Items: 2,137
graphic of how a collapse/explosion event sequence
June 28, 2018

At the summit of Kīlauea Volcano, Halema‘uma‘u has changed dramatically since early May 2018. As the crater walls and inner caldera slump inward, the depth of Halema‘uma‘u has more than tripled and the diameter has more than doubled.

USGS
June 28, 2018

These FAQs will help answer some of the most commonly asked questions about the nature of Kīlauea's summit activity and the numerous earthquakes occurring in the area.

USGS
June 27, 2018

This "Cooperator Report to the U.S. Coast Guard" addresses hazards associated with the Kamokuna ocean entry, active July 2016—November 2017, on KILAUEA's south flank

Subsidence of caldera floor impedes ability of NPIT GPS station to ...
June 25, 2018

On June 18, Hawaiian Volcano Observatory staff said a sad goodbye to a GPS instrument that had faithfully recorded over 95 m (310 ft) of downward motion of the floor of Kīlauea caldera before losing radio contact.

This means that Mauna Loa is now considered to be at a normal, background level of activity. (More information about alert level
June 22, 2018

For more than six months, earthquakes at Mauna Loa have diminished and deformation has slowed, indicating that the volcano is no longer at an elevated level of unrest. On June 21, 2018, the Hawaiian Volcano Observatory (HVO) lowered the alert level from ADVISORY to NORMAL, and lowered the color code from YELLOW to GREEN.

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.