States L2 Landing Page Tabs

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October 23, 2012

Thermal of Halema`uma`u Lava Lake

This Quicktime movie shows a time-lapse sequence of the lava lake captured by a thermal camera on the rim of Halema‘uma‘u crater. The sequence is shown at a speed of about 30 times actual. By viewing the sequence at this speed, spotting the upwelling area in the lake is easier than in a still photograph.

October 18, 2012

Overflight of Halema`uma`u

Video taken during today's helicopter overflight of Halema‘uma‘u, showing the active lava lake at a very high level (described in more detail in the caption above). Vigorous spattering on the lake margin emits a thick plume of gas.

October 18, 2012

Lava Lake at Pu`u `Ō`ō Crater

Quicktime video, taken from the east rim of Pu‘u ‘Ō‘ō crater, showing the small lava lake that is active in the northeast portion of the crater floor. Unsteady gas escape along the lake margins drives low-level spattering and undulations of the lake surface.

October 17, 2012

Movie showing flowing lava through a skylight

Quicktime movie showing lava flowing through the active 

October 14, 2012

Videos of lava lake in Halema‘uma‘u overlook vent

This video shows spattering at the west edge of the lava lake in the 'overlook' vent in Halema‘uma‘u Crater. The crackling and popping noises are from fracturing of the rocks composing the walls of the vent caused by thermal expansion.

October 14, 2012

Lava Spatter

Video zoomed in on the spattering at the west edge of the lava lake in the 'overlook' vent in Halema‘uma‘u.

October 14, 2012

Video of rocks exploding off of Halema‘uma‘u overlook vent wall

Heat from the high lava lake level in the 'overlook' vent in Halema‘uma‘u is causing the walls of the vent above the lava surface to expand and fracture. This is the source of the cracking and booming noises emanating from the vent in recent days. This video, zoomed in on the back (NW) wall of the vent, shows small fragments of rock exploding from the wall and scattering

Kīlauea's 1971 Southwest Rift Zone Eruption: A First in 52 Years...
October 1, 2012

Kīlauea's 1971 Southwest Rift Zone Eruption: A First in 52 Years

As erupting fissures migrated down Kīlauea's southwest rift zone in September 1971 for the first time in 52 years, many spectators hiked into the Ka‘ū Desert for a closer view of the rare event. Hawai‘i Volcanoes National Park rangers patrolled the area on horseback to keep people a safe distance from the lava fountains. Photo courtesy of NPS.

Kīlauea showing familiar pattern—or is it?...
August 2, 2012

Kīlauea showing familiar pattern—or is it?

Hawaiian Volcano Observatory's Recent Earthquakes Web page from Tuesday, July 31, with earthquake shown as colored circles, according to their times of occurrence.

Kīlauea's July 1974 summit eruption: fond memories of dinner by "la...
July 26, 2012

Kīlauea's July 1974 summit eruption

Lava fountains, occasionally surging to heights of 45-55 m (150-180 ft), erupted south and north of Keanakāko‘i Crater (top and middle fissures, respectively) and on the floor of Kīlauea Caldera (foreground fissure) in a spectacular summit eruption on July 19, 1974. A torrent of lava (largely obscured by fume at lower right) gushed to the caldera floor through a pre-

Except for a little friction, Kīlauea's summit and rift zones are w...
July 5, 2012

Kīlauea's summit and rift zones are well connected

A view of the lava lake within the Halema‘uma‘u Overlook vent on an unusually clear day (May 16, 2012) with the Jaggar Museum and the HVO building in the distance.

May 16, 2012

Spattering at Western Margin of Lava Lake at Halema`uma`u

This Quicktime movie shows the impressive spattering at the western margin of the lava lake at Halema‘uma‘u. The continuous spattering is often punctuated by bursts which throw lava onto the ledge (left portion of image), and this accumulating lava is building a spatter rampart. If you focus on the right portion of the image, you can see the slow migration of the lava lake

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October 17, 1997

A volcano is a complex system. During periods of sustained eruption, such as the present time, Kīlauea Volcano undergoes little internal change.

October 10, 1997

The eruption of Kīlauea Volcano has settled into a stable vent site, extrusive rate, and route to the sea. This statement would have been unimaginable in the early days of episode 55.

October 2, 1997

Lava Continues to Enter Sea

October 2, 1997

Lava flows are the biggest volcanic hazard in east Puna. In the past two centuries, four eruptions from Kīlauea's east rift zone have produced widespread lava flows: in 1790 (more than 45 km2 [16 mi2]), 1840 (22 km2 [7.9 mi2]), 1955 (17 km2 [6.1 mi2]), and 1960 (11.5 km2 [4.1 mi2]).

September 19, 1997

The Director of the U.S. Geological Survey, Gordon Eaton, announced his retirement last week at the agency's National Center in Reston, VA. Dr. Eaton was appointed to the post by President Clinton in 1994. When he retires on October 1 of this year, Dr. Eaton will have completed over 17 years of public service under the USGS banner.

Lava entering sea...
September 12, 1997

The billowing steam plumes rising from where lava enters the ocean are an indication that Kīlauea's eruption may be returning to normal, after several months of unsettled behavior. 

September 12, 1997

Lave Continues to Enter Sea

September 5, 1997

"A curtain of fire extended far down the rift zone. Fire fountains played to great heights. Burning embers fell to the ground. Smoke drifted downwind from the fountains of fire. Rivers of fire flowed downslope."

August 29, 1997

For over a decade, we have watched lava flows from Kīlauea overrun nearly 40 square miles of land, destroying precious forests, communities, and sacred ground. At other times, major earthquakes have generated damage over considerable parts of the island of Hawaii and, in the cases of the 1871 and 1938 earthquakes, even other islands.

August 22, 1997

Rift zones, which form during the shield-building stage of development, are prominent features of Hawaiian volcanoes. They are typically long, linear features whose formation and orientation are influenced by gravity and the pressures imparted by adjacent volcanoes. Most Hawaiian volcanoes have at least two major rift zones. These rift zones extend all the way down to the ocean floor.

August 17, 1997

Kilauea Eruption Continues!

August 15, 1997

One of the most highly watched events recently on television occurred on the Fourth of July when the U.S. Mars Pathfinder mission successfully transmitted images from the red planet back to Earth. The panorama of the Martian landing site had a striking semblance to the boulder-strewn field south of Halema`uma`u crater.