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: 89
Date published: January 1, 2016

Digital shaded-relief image mosaic of the nearshore coastal waters southwest Moloka'i generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains a shaded-relief image mosaic of the nearshore coastal waters along southwest Moloka'i. This image mosaic was generated using digitized 1:35K natural color photographs collected in September 1993 by the National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS) and scanned in at 1-meter resolution. Several of the 1-mete

Date published: January 1, 2016

Digital image mosaic of the nearshore coastal waters of Umipa'a on the island of Moloka'i generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains a digital image mosaic with 1.0 foot-per-pixel resolution of the Umipa'a area on the south coast of Moloka'i. This image mosaic was generated using digitized 1:10K natural color photographs collected in January 2000 by Air Survey Hawai'i, Inc. for the U.S. Geological Survey. Also available is a lower-resolution 'browse' graphic of the image

Date published: January 1, 2016

Digital image mosaic of the nearshore coastal waters from Waikiki to Portlock on the island of O'ahu generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains a digital image mosaic from Waikiki to Portlock along the southeast coast of O'ahu. Digital mosaics at 1-foot (0.3048-meter) resolution, including the areas of Waikiki, Diamond Head, Wai'alae, Maunalua Bay, and Portlock, were generated from 1:10K aerial photography. These five image mosaics were then combined into one larger mosaic a

Date published: January 1, 2016

Digital image mosaics of the nearshore coastal waters of Kailua-Kona on the Island of Hawai'i generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains an image mosaic with 1.0 meter-per-pixel resolution of the Kailua-Kona area on the west 'Kona' coast of the island of Hawai'i. This image mosaic was generated using digitized 1:24K natural color photographs collected in June 2000 by the National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS). Two versions of the

Date published: January 1, 2016

Digital image mosaics of the nearshore coastal waters of Kukio on the Island of Hawai'i generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains an image mosaic of the Kukio area on the west 'Kona' coast of the island of Hawai'i. This image mosaic was generated using digitized 1:24K natural color photographs collected in June 2000 by the National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS). Two versions of the image mosaic are available--one with and

Date published: January 1, 2016

Digital image mosaic of the nearshore coastal waters of La'au Point on the island of Moloka'i generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains a digital image mosaic with 1 meter-per-pixel resolution of the La'au Point area on the south coast of Moloka'i. This image mosaic was generated using digitized 1:35K natural color photographs collected in September 1993 by the National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS). Also available is a lower-reso

Date published: January 1, 2016

Digital image mosaic of the nearshore coastal waters of Haleolono Point on the island of Moloka'i generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains a digital image mosaic with 1 meter-per-pixel resolution of the Haleolono Point area on the south coast of Moloka'i. This image mosaic was generated using digitized 1:35K natural color photographs collected in September 1993 by the National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS). Also available is a lower-re

Date published: January 1, 2016

Digital image mosaics of the nearshore coastal waters of selected areas on the island of O'ahu generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains digital image mosaics along the southeast coast of O'ahu. Digital mosaics at 1-foot (0.3048-meter) resolution, including the areas of Waikiki, Diamond Head, Wai'alae, Maunalua Bay, and Portlock, were generated from 1:10K aerial photography and are presented in one zip file (oahu_1ft.zip) that also contains lower-resolution 'bro

Date published: January 1, 2016

Digital image mosaics of the nearshore coastal waters of Kawaihae on the Island of Hawai'i generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains an image mosaic of the Kawaihae area on the west 'Kona' coast of the island of Hawai'i. This image mosaic was generated using digitized 1:24K natural color photographs collected in June 2000 by the National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS). Two versions of the image mosaic are available--one with a

Date published: January 1, 2016

Digital image mosaic of the nearshore coastal waters of Pala'au on the island of Moloka'i generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains a digital image mosaic with 1 meter-per-pixel resolution of the Pala'au area on the south coast of Moloka'i. This image mosaic was generated using digitized 1:35K natural color photographs collected in September 1993 by the National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS). Also available is a lower-resoluti

Date published: January 1, 2016

Digital image mosaic of the nearshore coastal waters of Puko'o on the island of Moloka'i generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains a digital image mosaic with 1 meter-per-pixel resolution of the Puko'o area on the south coast of Moloka'i. This image mosaic was generated using digitized 1:35K natural color photographs collected in September 1993 by the National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS). Also available is a lower-resolutio

Date published: January 1, 2016

Digital image mosaics of the nearshore coastal waters of Kalaeloa on the island of Moloka'i generated using aerial photographs and SHOALS airborne lidar bathymetry data

This portion of the data release contains a digital image mosaic with 1.0 foot-per-pixel resolution of the Kalaeloa area on the south coast of Moloka'i. This image mosaic was generated using digitized 1:10K natural color photographs collected in January 2000 by Air Survey Hawai'i, Inc. for the U.S. Geological Survey. Also available is a lower-resolution 'browse' graphic of the image m

Filter Total Items: 367
Map showing lower East Rift Zone lava flows and fissure
August 3, 2018

Map as of 10:00 a.m. HST, August 3, 2018

Map showing lower East Rift Zone lava flows and fissure
August 1, 2018

Map as of 10:00 a.m. HST, August 1, 2018

Map showing lower East Rift Zone lava flows and fissure
July 31, 2018

Map as of 1:00 p.m. HST, July 31, 2018

Thermal map of fissure system and lava flows
July 31, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Tuesday, July 31

Map showing lower East Rift Zone lava flows and fissure
July 30, 2018

Map as of 12:00 p.m. HST, July 30, 2018.

Thermal map of fissure system and lava flows
July 29, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Sunday, July 29

Map showing lower East Rift Zone lava flows and fissure
July 27, 2018

Map as of 4:00 p.m. HST, July 27, 2018

Thermal map of fissure system and lava flows
July 27, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Friday, July 27

Map showing lower East Rift Zone lava flows and fissure
July 26, 2018

Lower East Rift Zone lava-flow map as of 2:00 p.m. HST, July 26, 2018.

Map showing lower East Rift Zone lava flows and fissure
July 25, 2018

As of 10:00 a.m. HST, July 25, 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 25, 2018

This thermal map shows the fissure system and lava flows as of 6 am on Wednesday, July 25

Map showing lower East Rift Zone lava flows and fissure
July 24, 2018

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

Filter Total Items: 118
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Year Published: 2007

Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2006 to June 30, 2007

Storm runoff water-quality samples were collected as part of the State of Hawaii Department of Transportation Stormwater Monitoring Program. This program is designed to assess the effects of highway runoff and urban runoff on Halawa Stream. For this program, rainfall data were collected at two stations, continuous streamflow data at three stations...

Young, Stacie T.M.; Jamison, Marcael T.J.
Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2006 to June 30, 2007; 2007; OFR; 2007-1213; Young, Stacie T. M.; Jamison, Marcael T. J.

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Year Published: 2007

Natural and Diverted Low-Flow Duration Discharges for Streams Affected by the Waiahole Ditch System, Windward O`ahu, Hawai`i

For nearly a century, the Waiahole Ditch System has diverted an average of approximately 27 million gallons per day of water from the wet, northeastern part of windward O`ahu, Hawai`i, to the dry, central part of the island to meet irrigation needs. The system intercepts large amounts of dike-impounded ground water at high altitudes (above...

Yeung, Chiu W.; Fontaine, Richard A.
Natural and Diverted Low-Flow Duration Discharges for Streams Affected by the Waiahole Ditch System, Windward O`ahu, Hawai`i; 2007; SIR; 2006-5285; Yeung, Chiu W.; Fontaine, Richard A.

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Year Published: 2007

Water Use in Wetland Kalo Cultivation in Hawai`i

Ten cultivation areas (8 windward, 2 leeward) were selected for a kalo water-use study, primarily on the basis of the diversity of environmental and agricultural conditions under which wetland kalo is grown and landowner permission and availability. Flow and water-temperature data were collected at the lo`i complex level and at the individual lo`i...

Gingerich, Stephen B.; Yeung, Chiu W.; Ibarra, Tracy-Joy N.; Engott, John A.
Water Use in Wetland Kalo Cultivation in Hawai`i; 2007; OFR; 2007-1157; Gingerich, Stephen B.; Yeung, Chiu W.; Ibarra, Tracy-Joy N.; Engott, John A.

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Year Published: 2007

Ground-Water Nutrient Flux to Coastal Waters and Numerical Simulation of Wastewater Injection at Kihei, Maui, Hawaii

Water sampling and numerical modeling were used to estimate ground-water nutrient fluxes in the Kihei area of Maui, where growth of macroalgae (seaweed) on coral reefs raises ecologic concerns and accumulation on beaches has caused odor and removal problems. Fluxes and model results are highly approximate, first-order estimates because very few...

Hunt, Charles D.
Ground-Water Nutrient Flux to Coastal Waters and Numerical Simulation of Wastewater Injection at Kihei, Maui, Hawaii; 2007; SIR; 2006-5283; Hunt, Charles D., Jr.

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Year Published: 2006

Water Resources Data: Hawaii and Other Pacific Areas, Water Year 2005. Volume 1. Hawaii

Water resources data for the 2005 water year for Hawaii consist of records of stage, discharge, and water quality of streams and springs; water levels and quality of water wells; and rainfall totals. * Water discharge for 59 gaging stations on streams, springs, and ditches. * Water-quality data for 6 streams. * Water levels for 80 observation...

Fontaine, Richard A.
Water Resources Data: Hawaii and Other Pacific Areas, Water Year 2005. Volume 1. Hawaii; 2006; WDR; HI-05-1; Fontaine, Richard A.

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Year Published: 2006

Effects of Surface-Water Diversion and Ground-Water Withdrawal on Streamflow and Habitat, Punaluu Stream, Oahu, Hawaii

The surface- and ground-water resources of the Punaluu area of northeast Oahu, Hawaii, have been and continue to be important for cultural, domestic, agricultural, recreational, and aesthetic purposes. Punaluu Stream flows perennially because rain falls frequently in the area and ground water discharges to the stream. Flow in Punaluu Stream is...

Oki, Delwyn S.; Wolff, Reuben H.; Perreault, Jeff A.
Effects of Surface-Water Diversion and Ground-Water Withdrawal on Streamflow and Habitat, Punaluu Stream, Oahu, Hawaii; 2006; SIR; 2006-5153; Oki, Delwyn S.; Wolff, Reuben H.; Perreault, Jeff A.

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Year Published: 2006

Numerical Simulation of the Hydrologic Effects of Redistributed and Additional Ground-Water Withdrawal, Island of Molokai, Hawaii

Because of increased demand for water associated with a growing population, projected increases in demand over the next few decades, and rising salinity of the water pumped from some existing wells, the County of Maui Department of Water Supply (DWS) is currently (2006) considering drilling additional wells to replace or supplement existing wells...

Oki, Delwyn S.
Numerical Simulation of the Hydrologic Effects of Redistributed and Additional Ground-Water Withdrawal, Island of Molokai, Hawaii; 2006; SIR; 2006-5177; Oki, Delwyn S.

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Year Published: 2006

Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2005 to June 30, 2006

Storm runoff water-quality samples were collected as part of the State of Hawaii Department of Transportation Stormwater Monitoring Program. This program is designed to assess the effects of highway runoff and urban runoff on Halawa Stream. For this program, rainfall data were collected at two stations, continuous discharge data at one station,...

Presley, Todd K.; Jamison, Marcael T.J.; Young-Smith, Stacie T. M.
Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2005 to June 30, 2006; 2006; OFR; 2006-1223; Presley, Todd K.; Jamison, Marcael T. J.; Young-Smith, Stacie T. M.

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Year Published: 2005

Water Resources Data: Hawaii and Other Pacific Areas, Water Year 2004. Volume 1. Hawaii

Water resources data for the 2004 water year for Hawaii consist of records of stage, discharge, and water quality of streams and springs; water levels and quality of water wells; and rainfall totals. * Water discharge for 66 gaging stations on streams, springs, and ditches. * Water-quality data for 4 streams, and 1 well. * Water levels for 42...

Shimizu, B.H.; Nishimoto, D.C.; Taogoshi, R.I.; Teeters, P.C.
Water Resources Data: Hawaii and Other Pacific Areas, Water Year 2004. Volume 1. Hawaii; 2005; WDR; HI-04-1; Shimizu, B. H.; Nishimoto, D. C.; Taogoshi, R. I.; Teeters, P. C.

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Year Published: 2005

Effects of Surface-Water Diversions on Habitat Availability for Native Macrofauna, Northeast Maui, Hawaii

Effects of surface-water diversions on habitat availability for native stream fauna (fish, shrimp, and snails) are described for 21 streams in northeast Maui, Hawaii. Five streams (Waikamoi, Honomanu, Wailuanui, Kopiliula, and Hanawi Streams) were chosen as representative streams for intensive study. On each of the five streams, three...

Gingerich, Stephen B.; Wolff, Reuben H.
Effects of Surface-Water Diversions on Habitat Availability for Native Macrofauna, Northeast Maui, Hawaii; 2005; SIR; 2005-5213; Gingerich, Stephen B.; Wolff, Reuben H.

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Year Published: 2005

Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2004 to June 30, 2005

Storm runoff water-quality samples were collected as part of the State of Hawaii Department of Transportation Stormwater Monitoring Program. This program is designed to assess the effects of highway runoff and urban runoff on Halawa Stream. For this program, rainfall data were collected at two stations, continuous streamflow data at two stations,...

Young, Stacie T.M.; Ball, Marcael T.J.
Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2004 to June 30, 2005; 2005; OFR; 2005-1280; Young, Stacie T. M.; Ball, Marcael T. J.

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Year Published: 2005

Construction, Geology, and Aquifer Testing of the Maalo Road, Aahoaka Hill, and Upper Eleele Tank Monitor Wells, Kauai, Hawaii

The Maalo Road, Aahoaka Hill, and Upper Eleele Tank monitor wells were constructed using rotary drilling methods between July 1998 and August 2002 as part of a program of exploratory drilling, aquifer testing, and hydrologic analysis on Kauai. Aquifer tests were conducted in the uncased boreholes of the wells. The Maalo Road monitor well in the...

Izuka, Scot K.
Construction, Geology, and Aquifer Testing of the Maalo Road, Aahoaka Hill, and Upper Eleele Tank Monitor Wells, Kauai, Hawaii; 2005; OFR; 2005-1159; Izuka, Scot K.

Filter Total Items: 2,120
Color photograph of caldera
May 15, 2021

Routine visit to Mauna Loa summit

On May 15, USGS Hawaiian Volcano Observatory geologists did a routine hike to the summit of Mauna Loa and inspected summit monitoring equipment. Clear weather provided good views across the floor of Moku‘āweoweo, Mauna Loa's summit caldera, and nothing unusual was observed.

Color photograph of caldera
May 15, 2021

Routine visit to Mauna Loa summit

A USGS Hawaiian Volcano Observatory geologist inspects the thermal camera at the summit of Mauna Loa on May 15, 2021.

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active
May 14, 2021

View of the active lava lake area in Halema‘uma‘u—Kīlauea, May 14

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active, although surface incandescence (glowing red lava) has become less frequent over the last few days. In this view looking northwest, two elongated lobes oriented west (left) to east (right) with a relatively smooth shiny grey surface are visible in the center of the photo. These two lobes

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USGS Hawaiian Volcano Observatory geologists conducted an overflight of Kīlauea's summit on the morning of May 13
May 13, 2021

Kīlauea summit overflight - May 13

USGS Hawaiian Volcano Observatory geologists conducted an overflight of Kīlauea's summit on the morning of May 13. Though no incandescence was visible during the overflight, field crews monitoring the ongoing eruption in Halema‘uma‘u from the ground observed a small amount of fluid lava on the surface later in the day. In this aerial photo, the west vent area is in the

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More of Kīlauea's lava lake surface in Halema‘uma‘u crater has solidified in recent weeks, evident in this May 13 aerial view
May 13, 2021

Kīlauea summit overflight - May 13

More of Kīlauea's lava lake surface in Halema‘uma‘u crater has solidified in recent weeks, as is evident in this aerial view taken yesterday, May 13. However, gas emissions and small patches of active lava on the surface indicate that the eruption continues. Most recently, gas emissions were measured as 225 tonnes per day on May 12. The bluish-tinged plume of volcanic gas

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A low, oblique aerial view of the west vent in Halema‘uma‘u at Kīlauea's summit
May 13, 2021

Kīlauea summit overflight - May 13

A low, oblique aerial view of the west vent in Halema‘uma‘u at Kīlauea's summit (upper right) taken during an overflight on May 13. The area of active lava has slowly been decreasing in recent weeks, but not all of the lava lake surface has stagnated. Portions of the lake surface continue to resurface via a process called foundering. During foundering, the dense solidified

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Near Kīlauea Visitor Center, the Ha‘akulamanu trail within Hawai‘i Volcanoes National Park passes through the Sulphur Banks area
May 13, 2021

Kīlauea summit overflight - May 13

Near Kīlauea Visitor Center, the Ha‘akulamanu trail within Hawai‘i Volcanoes National Park passes through the Sulphur Banks area. Fumaroles in this area emit different sulfur gases, including sulfur dioxide (SO2) and hydrogen sulfide (H2S), and are sampled approximately every three months by USGS Hawaiian Volcano Observatory gas geochemists to track

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USGS Hawaiian Volcano Observatory geologists observed fluid lava on the surface of the lava lake in Halema‘uma‘u, at the summit
May 13, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—May 13, 2021

USGS Hawaiian Volcano Observatory geologists observed fluid lava on the surface of the lava lake in Halema‘uma‘u, at the summit of Kīlauea, while monitoring the eruption on May 13. Two areas of ponded lava exhibited foundering, during which more-dense solidified crust sinks into the lava lake and is replaced by less-dense liquid lava from below. This photo shows the

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The area of solidified crust at the surface of Halema‘uma‘u's lava lake, has been growing over the past several weeks
May 13, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—May 13, 2021

The area of solidified crust at the surface of Halema‘uma‘u's lava lake, at the summit of Kīlauea, has been growing over the past several weeks. This may make it seem that the eruption is over but lava continues to be supplied to the lava lake from below. With National Park Service permission, USGS Hawaiian Volcano Observatory geologists observe this eruption from within

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The eruption in Halema‘uma‘u, at the summit of Kīlauea, continues
May 13, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—May 13, 2021

The eruption in Halema‘uma‘u, at the summit of Kīlauea, continues. Gas emissions, last measured on May 12, were 225 tonnes per day. This photo, taken on May 13, shows the bluish-tinged plume of volcanic gas being emitted from the western vent complex within Halema‘uma‘u crater. USGS image by K. Mulliken.

Digital elevation model of crater and lava lake
May 13, 2021

Halema‘uma‘u DEM May 13, 2021

A helicopter overflight on May 13, 2021, at approximately 11:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of the eruption within Halema‘uma‘u crater at the summit of Kīlauea Volcano. The visual images were used to create a digital elevation model (DEM) of the crater, shown here. The many islands and levees formed at different times during the

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A wide view of Halema‘uma‘u from the western crater rim, at the summit of Kīlauea
May 12, 2021

Halema‘uma‘u eruption activity on May 12, 2021 — Kīlauea summit

A wide view of Halema‘uma‘u from the western crater rim, at the summit of Kīlauea. The west vent (lower left) continues to supply lava into the lake through a submerged inlet. Much of the western active lava lake surface has crusted over in the last few weeks as the effusion rate remains low. USGS photograph taken by D. Downs on May 12, 2021.

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HVO’s continuous, automated laser rangefinder on the western rim of Halemaʻumaʻu
May 13, 2021

Kīlauea’s summit lava lake in Halemaʻumaʻu is approaching its five-month anniversary on Thursday, May 20, while the water lake that occupied the crater for the previous seventeen months seems like a distant memory. 

A wide view of Halema‘uma‘u from the western crater rim, at the summit of Kīlauea
May 12, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 229 m (751 ft) deep this morning, May 12. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Color photograph of person in colorful shirt in front of rock wall
May 12, 2021

ANCHORAGE, Alaska — On May 9, 2021, Christina (Tina) Neal became the new director of the U.S. Geological Survey Volcano Science Center, home of the Alaska, California, Cascades, Hawaiian and Yellowstone volcano observatories.  

A telephoto view of the active lava surface in Halema‘uma‘u at the summit of Kīlauea
May 11, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 229 m (751 ft) deep this morning, May 11. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Color photograph of lava lake
May 7, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 228 m (748 ft) deep this morning, May 7. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Plots of volcano deformation data
May 6, 2021

Although Mauna Loa is Earth’s largest active volcano, it has lived in the shadow of Kīlauea since it last erupted in 1984.  The geologic record shows that Mauna Loa erupts every seven years on average; however, 37 years have passed since lava flows from the volcano’s Northeast Rift Zone came within 7 km (4 miles) of Hilo. 

Color photograph of lava lake
May 5, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 228 m (748 ft) deep this morning, May 5. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Hiking along the rim of the 2018 collapse area at the summit of Kīlauea
May 3, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 227 m (744 ft) deep this morning, May 3. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

A rainy view from the western rim of Halema‘uma‘u, at Kīlauea summit
April 30, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 227 m (744 ft) deep this morning, April 30. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active but the active surface lava has diminished
April 29, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 227 m (744 ft) deep this morning, April 29. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

A view of the lake this afternoon from the Halema‘uma‘u Crater rim,...
April 29, 2021

May 3rd marks three years since the start of the devastating lower East Rift Zone eruption of Kīlauea. In 2018, rising summit lava lake levels, caused by building magmatic pressure, culminated in a large eruption on the lower flank which then abruptly drained the summit lava lake and initiated crater collapse.

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active
April 28, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 227 m (744 ft) deep this morning, April 28. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear—monitor the eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.