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Kīlauea images of eruptive activity, field work, and more.

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Geologist samples layers formed by explosive eruptions at Kīlauea V...
Geologist samples layers formed by explosive eruptions at Kīlauea, ...
Geologist samples layers formed by explosive eruptions at Kīlauea, ...
Geologist samples layers formed by explosive eruptions at Kīlauea, ...

These tephra deposits are from the Kulanaokuaiki Tephra erupted from Kīlauea Volcano about 200 to 1000 C.E. The base of a lava flow overlying the tephra is just above the person's hand. This site is located near the base of Kīlauea's summit crater wall, directly below the USGS Hawaiian Volcano Observatory and NPS Jaggar Museum.

These tephra deposits are from the Kulanaokuaiki Tephra erupted from Kīlauea Volcano about 200 to 1000 C.E. The base of a lava flow overlying the tephra is just above the person's hand. This site is located near the base of Kīlauea's summit crater wall, directly below the USGS Hawaiian Volcano Observatory and NPS Jaggar Museum.

Color photograph of fissure eruption
Aerial photo of the Kamoamoa eruption on March 7, 2011
Aerial photo of the Kamoamoa eruption on March 7, 2011
Aerial photo of the Kamoamoa eruption on March 7, 2011

Aerial photo of the Kamoamoa eruption on March 7, 2011. The western fissure feeding a channelized ‘a‘ā flow is visible in the lower right, while the eastern end of the fissure system and Pu‘u‘ō‘ō crater are in the upper left. USGS photo by T. Orr.

Aerial photo of the Kamoamoa eruption on March 7, 2011. The western fissure feeding a channelized ‘a‘ā flow is visible in the lower right, while the eastern end of the fissure system and Pu‘u‘ō‘ō crater are in the upper left. USGS photo by T. Orr.

Color photograph of scientists monitoring eruption
Scientists collect volcanic gas data using a Fourier Transform Infrared spectrometer (FTIR)
Scientists collect volcanic gas data using a Fourier Transform Infrared spectrometer (FTIR)
Scientists collect volcanic gas data using a Fourier Transform Infrared spectrometer (FTIR)

Scientists collect volcanic gas data using a Fourier Transform Infrared spectrometer (FTIR). During the Kamoamoa eruption, sulfur dioxide emission rates from Kīlauea’s East Rift Zone reached the highest levels since the episodes of high-fountaining at Pu‘u‘ō‘ō (1983–1986) with an average rate of 8,500 tonnes per day and a peak value of 11,000 tonnes per day.

Scientists collect volcanic gas data using a Fourier Transform Infrared spectrometer (FTIR). During the Kamoamoa eruption, sulfur dioxide emission rates from Kīlauea’s East Rift Zone reached the highest levels since the episodes of high-fountaining at Pu‘u‘ō‘ō (1983–1986) with an average rate of 8,500 tonnes per day and a peak value of 11,000 tonnes per day.

Color photograph of scientist sampling lava
Geologist collects a molten lava sample from the Kamoamoa eruption
Geologist collects a molten lava sample from the Kamoamoa eruption
Geologist collects a molten lava sample from the Kamoamoa eruption

A geologist collects a molten lava sample from the Kamoamoa eruption. USGS photo taken by M. Patrick on March 6, 2011.

Color photograph of scientists measuring crack
Measuring ground cracks during the Kamoamoa eruption
Measuring ground cracks during the Kamoamoa eruption
Measuring ground cracks during the Kamoamoa eruption

Hawaiian Volcano Observatory scientists map and measure ground cracks during the Kamoamoa eruption. USGS photo taken by N. Richter on March 6, 2011.

HVO geologist describes activity from Kīlauea Volcano during a fiel...
Geologist describes activity from Kīlauea during a field trip to co...
Geologist describes activity from Kīlauea during a field trip to co...
Geologist describes activity from Kīlauea during a field trip to co...

HVO geologist describes activity from Kīlauea Volcano during a field trip to the coastal lava flow field for members of the media in 2010.

Map of Kīlauea Volcano showing the south-southeast motion, as recor...
Map of Kīlauea showing the south-SE motion, as recorded by continuo...
Map of Kīlauea showing the south-SE motion, as recorded by continuo...
Map of Kīlauea showing the south-SE motion, as recorded by continuo...

Map of Kīlauea Volcano showing the south-southeast motion, as recorded by continuous GPS sites (arrows), and earthquake epicenter between February 1-3, 2010.

Two color photographs, one showing a clear-day rock-wall face and one showing the rock-wall face obscured by volcanic gases.
Side-by-side comparison of the northwest wall of Kīlauea Caldera
Side-by-side comparison of the northwest wall of Kīlauea Caldera
Side-by-side comparison of the northwest wall of Kīlauea Caldera

Side-by-side comparison of the northwest wall of Kīlauea Caldera on a clear day (left) and a day with thick vog (right). HVO observation tower and building can be seen near the center in each photo

Side-by-side comparison of the northwest wall of Kīlauea Caldera on a clear day (left) and a day with thick vog (right). HVO observation tower and building can be seen near the center in each photo

Image: Monitoring Gas Emissions from Kilauea Volcano
Monitoring Gas Emissions from Kilauea Volcano
Monitoring Gas Emissions from Kilauea Volcano
Monitoring Gas Emissions from Kilauea Volcano

Sulfur dioxide gas emissions from the crater of Pu‘u ‘Ō ‘ō on Kīlauea’s east rift zone and the vent within Halema‘uma‘u Crater at Kīlauea’s summit create volcanic pollution that affects the air quality of downwind communities.  Here, a USGS Hawaiian Volcano Observatory gas geochemist measures Pu‘u ‘Ō‘ō gas emissions using an instrument that detects ga

Sulfur dioxide gas emissions from the crater of Pu‘u ‘Ō ‘ō on Kīlauea’s east rift zone and the vent within Halema‘uma‘u Crater at Kīlauea’s summit create volcanic pollution that affects the air quality of downwind communities.  Here, a USGS Hawaiian Volcano Observatory gas geochemist measures Pu‘u ‘Ō‘ō gas emissions using an instrument that detects ga

Image: Kilauea Lava FLows Advance Toward Kalapana
Kilauea Lava FLows Advance Toward Kalapana
Kilauea Lava FLows Advance Toward Kalapana
Kilauea Lava FLows Advance Toward Kalapana

In July 2010, lava erupted from Kilauea Volcano's east rift zone burned vegetation on the coastal plain as active flows advanced toward Kalapana Gardens, the same area inundated by lava flows in 1990. Two homes in the subdivision were destroyed by lava in 2010 -- one in July and one in November.

In July 2010, lava erupted from Kilauea Volcano's east rift zone burned vegetation on the coastal plain as active flows advanced toward Kalapana Gardens, the same area inundated by lava flows in 1990. Two homes in the subdivision were destroyed by lava in 2010 -- one in July and one in November.

Image: Kilauea July 2007 Eruption Flow (Map)
Kilauea July 2007 Eruption Flow (Map)
Kilauea July 2007 Eruption Flow (Map)
Kilauea July 2007 Eruption Flow (Map)

Map showing the extent of the July 2007 eruption flow field relative to surrounding communities. Light red is the extent of the July 2007 eruption flow field. Reddish-brown is the extent of the currently-active Quarry flow as of July 8, 2010, while bright red shows the flow field expansion of the Quarry flow mapped by HVO geologists between July 8 and 14.

Map showing the extent of the July 2007 eruption flow field relative to surrounding communities. Light red is the extent of the July 2007 eruption flow field. Reddish-brown is the extent of the currently-active Quarry flow as of July 8, 2010, while bright red shows the flow field expansion of the Quarry flow mapped by HVO geologists between July 8 and 14.

Image: Looking Southeast Along Kilauea TEB Tube System
Looking Southeast Along Kilauea TEB Tube System
Looking Southeast Along Kilauea TEB Tube System
Looking Southeast Along Kilauea TEB Tube System

View looking southeast along the fuming trace of the TEB tube system. The growing rootless shield field is in the background just above and to the left of center frame. The low, rounded shape of the shields--especially the shield in shadow to the left--are evident in this photo.

View looking southeast along the fuming trace of the TEB tube system. The growing rootless shield field is in the background just above and to the left of center frame. The low, rounded shape of the shields--especially the shield in shadow to the left--are evident in this photo.

Kīlauea plume: now you see it, now you don't...
Kīlauea plume: now you see it, now you don't
Kīlauea plume: now you see it, now you don't
Kīlauea plume: now you see it, now you don't

Kīlauea volcano's summit eruption plume as viewed from the southeast flank of Mauna Loa on 11/30/2009 (top) and 12/20/2009 (bottom). The eruption plume's visible appearance is a complex function of physical eruptive vent conditions, meteorology and atmosp

Kīlauea volcano's summit eruption plume as viewed from the southeast flank of Mauna Loa on 11/30/2009 (top) and 12/20/2009 (bottom). The eruption plume's visible appearance is a complex function of physical eruptive vent conditions, meteorology and atmosp

1940 was a momentous year for Mauna Loa - and for Thomas A. Jaggar ...
1940 was a momentous year for Mauna Loa - and for Thomas A. Jaggar
1940 was a momentous year for Mauna Loa - and for Thomas A. Jaggar
1940 was a momentous year for Mauna Loa - and for Thomas A. Jaggar

Lava fountains erupt from a fissure in the southwestern part of Moku`aeoweo, Mauna Loa's summit caldera, on April 11, 1940 (view looking to the south-southeast). Patches of white snow cling to the caldera walls as fluid pahoehoe lava flows spread across

Lava fountains erupt from a fissure in the southwestern part of Moku`aeoweo, Mauna Loa's summit caldera, on April 11, 1940 (view looking to the south-southeast). Patches of white snow cling to the caldera walls as fluid pahoehoe lava flows spread across

Petrologic Monitoring of Kīlauea Volcano: An update for "Rockhounds...
Petrologic Monitoring of Kīlauea: An update for "Rockhounds"
Petrologic Monitoring of Kīlauea: An update for "Rockhounds"
Petrologic Monitoring of Kīlauea: An update for "Rockhounds"

An HVO geologist samples lava from an active lava tube. These samples are analyzed routinely to track changes in lava chemistry.

View of lava lake in Overlook vent, Halema‘uma‘u Crater, Kīlauea Vo...
View of lava lake in Overlook vent, Halema‘uma‘u, Kīlauea
View of lava lake in Overlook vent, Halema‘uma‘u, Kīlauea
View of lava lake in Overlook vent, Halema‘uma‘u, Kīlauea

This photo shows the view into Overlook vent during a relatively high level of the lava lake in 2010. When the lava was at a high stand like this, the plume became very thin and a view of the lava lake was possible.

This photo shows the view into Overlook vent during a relatively high level of the lava lake in 2010. When the lava was at a high stand like this, the plume became very thin and a view of the lava lake was possible.

Image: Composite image of Kilauea viewing area
Composite image of Kilauea viewing area
Composite image of Kilauea viewing area
Composite image of Kilauea viewing area

This composite image overlays a thermal image on a normal photograph, and shows the flow field in the vicinity of the County viewing area, at the end of the Kalapana access road. Recent flows, from the past few weeks, show up as light red, whereas the currently active breakouts are yellow and white.

This composite image overlays a thermal image on a normal photograph, and shows the flow field in the vicinity of the County viewing area, at the end of the Kalapana access road. Recent flows, from the past few weeks, show up as light red, whereas the currently active breakouts are yellow and white.

Image: Thermal image of Kilauea viewing area
Thermal image of Kilauea viewing area
Thermal image of Kilauea viewing area
Thermal image of Kilauea viewing area

A closer view of the County viewing area, looking northeast. Again, the thermal image is shown together with a normal photograph. Recently emplaced flows, from the past several weeks, are light red (center of image). The currently active breakouts, just 250 yards northwest of the road, show up as white and yellow.

A closer view of the County viewing area, looking northeast. Again, the thermal image is shown together with a normal photograph. Recently emplaced flows, from the past several weeks, are light red (center of image). The currently active breakouts, just 250 yards northwest of the road, show up as white and yellow.

Image: Aerial coastline of Kilauea
Aerial coastline of Kilauea
Aerial coastline of Kilauea
Aerial coastline of Kilauea

An aerial photograph looking west along the coastline of the current flow field. The Ki entry continues to produce a small plume, which is distributed along the newly formed delta. The color change in the ocean near the entry is due to the wave erosion of material from the delta and the lava itself.

An aerial photograph looking west along the coastline of the current flow field. The Ki entry continues to produce a small plume, which is distributed along the newly formed delta. The color change in the ocean near the entry is due to the wave erosion of material from the delta and the lava itself.

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