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Pu‘u ‘Ō‘ō cone and surroundings as of March 2000...
March 1, 2000

Pu‘u ‘Ō‘ō cone and surroundings as of March 2000 showing the area covered (dark gray) by lava since February 1997 during episode 55. Inside the crater of Pu‘u ‘Ō‘ō, the "trough" is the drained lava pond of September–October 1999.

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Lava flowing across the landscape
June 24, 2018

Kīlauea Volcano — Lava Flows from Fissure 8

View to the southwest, looking "up" the lava channel. Lava flows from Fissure 8 (not pictured) through the open channel about 13 km (8 mi) to the ocean. Lava remains incandescent (glowing orange) along the entire length of the channel with sections of cooled lava (black) on the surface. The dark areas in the lower portion of the image are parts of the early lava flow from

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Lava fountain with lava flow
June 24, 2018

Kīlauea Volcano — Fissure 8 Fountain

At fissure 8, fountains provide a vigorous supply of lava that exits the cinder cone and drops over a spillway to enter a well-established 

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Geologist pointing into the distance along a road with a straight roadway beside him.
June 24, 2018

Kīlauea Volcano — Roadway Crack Observations

USGS field crews track activity in and around Leilani Estates in Kīlauea Volcano's lower East Rift Zone. Observations are also collected on a daily basis from cracks in the area of Highway 130, shown here (no changes in temperature, crack width, or gas emissions have been noted recently).

Lava spattering from a cone
June 24, 2018

Kīlauea Volcano — Spatter Cone (Fissure 8)

The spatter cone at fissure 8 is now about 55 m (180 ft) tall. 

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Small plume cloud from a crater
June 24, 2018

Kīlauea Volcano — Small Halema`uma`u Eruption (June 24, 2018)

On June 24 a small ash-poor steam plume rose above the Halema‘uma‘u crater rim following another collapse explosion event at 4:12 p.m. HST (image taken at 4:27 p.m.).

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Kīlauea summit subsides and produces frequent earthquakes...
June 24, 2018

Kīlauea summit subsides and produces frequent earthquakes

On June 23, 2018 at 4:32 p.m. HST after approximately 17 hours of elevated seismicity, a collapse explosion occurred at the summit if Kīlauea. The energy released by the event was equivalent to a magnitude 5.3 earthquake. During the intense shaking, rockfalls cascaded down the northern margin of the caldera wall just below Uēkahuna Bluff sending rock dust into the air.

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Crater view
June 23, 2018

Kīlauea Volcano — Halema`uma`u Crater Collapse (June 23, 2018)

On June 23, 2018 at 4:32 p.m. HST after approximately 17 hours of elevated seismicity, a collapse explosion occurred at the summit if Kīlauea. The energy released by the

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Kīlauea fissure 8 lava channel transports "lava boats"...
June 23, 2018

Kīlauea fissure 8 lava channel transports "lava boats"

Geologists captured this time-lapse video of the perched lava channel issuing from fissure 8 on Kīlauea's lower East Rift Zone.

Rafts of accreted lava move down stream and look like boats moving down a river. These are termed lava balls or lava boats and form when portions of the fissure 8 cone or levees break away and are rafted down stream. As they move along

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View of Halema`uma`u crater
June 22, 2018

Kīlauea Volcano — Halema‘uma‘u Crater

Halema'uma'u crater at 8:30 a.m., view is toward the south. Several benches are clearly visible within the crater. The benches are sections of the former crater rim and adjacent Kīlauea 

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Aerial of lava channel
June 22, 2018

Kīlauea Volcano — Fissure 8 Lava Channel

Early morning view of the open lava channelbeginning about 5 km (3.1 miles) from Fissure 8. The channel bends 90 degrees to the south (right) on the far side of

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Lava fountaining with lava channel flowing away
June 22, 2018

Kīlauea Volcano — Fissure 8 Lava Fountain

Lava continues to erupt at a high rate from 

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USGS office in Honolulu, Hawaii
June 1, 2016

The main office of the Pacific Islands Water Science Center is located on Ford Island.

Map of the 48 contiguous states showing Microcystin concentrations
May 31, 2016

First-of-its-kind survey shows that algal toxins are found nationwide

Beyond volcanoes and earthquakes: USGS scientists study mosquito ec...
May 26, 2016

Mosquitoes have been on the minds of Hawai‘i Island residents and visitors due to the recent outbreak of dengue fever. On February 12, 2016, Hawaii Governor David Ige declared a state of emergency for all mosquito-borne illnesses, including dengue fever and Zika virus.

Scientists search for the right "keys" to Mauna Loa...
May 19, 2016

Mauna Loa's renewed activity, especially the recent earthquake and deformation changes, has HVO scientists polishing old keys while developing new ones that were technologically inconceivable prior to the volcano's most recent eruption in 1984.

When were the first photographs of Kīlauea Volcano taken?...
May 12, 2016

Photography continues to be a powerful tool for HVO geologists trying to tease out details of old and new eruptions at Kīlauea and other Hawaiian volcanoes. 

Driving and walking Crater Rim Drive is an explosive experience...
May 5, 2016

Kīlauea is an explosive volcano that will, almost certainly, explode again.

Right person at the right time for the right job—Mahalo nui loa, Da...
April 28, 2016

This past week was Darryl Oliveira's last as the Administrator of Hawai‘i County CD, a position he has held since early 2013. He retires effective May 1, 2016.

Happy birthday to the Hawai'i Island geologic map!...
April 21, 2016

This year marks the 20th anniversary of the Geologic Map of the Island of Hawaii, known affectionately to local volcanologists as the BIMP (Big Island Mapping Project).

Gentle reminders for all Hawaii residents to prepare for damaging e...
April 14, 2016

Each year, Hawai‘i County residents likely feel dozens of earthquakes. They might readily agree that earthquakes are indeed part of living on the Island of Hawai‘i. But residents across the State of Hawaii, recently nudged by three small earthquakes, were gently reminded that they, too, live with earthquakes.

Mauna Loa 1950 eruption: A lot of lava with little warning...
April 7, 2016

Mauna Loa, the largest active volcano on Earth, is not erupting, but is stirring. Seismicity remains elevated above long-term background levels, and ground deformation indicates continued inflation of a magma reservoir beneath the volcano. 

USGS
April 1, 2016

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.7 earthquake north of the Island of Hawai‘i and east of the Island of Maui on Thursday, March 31, at 11:16 p.m., HST. The Pacific Tsunami Warning Center has determined that no damaging tsunami was generated (http://ptwc.weather.gov/?region=2).

HVO Welcomes a New Seismic Network Manager...
March 31, 2016

The U.S. Geological Survey’s Hawaiian Volcano Observatory is excited to welcome geophysicist Brian Shiro to its team!