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Tag Archive | "lava"

puuoo-crater-n-thermal2014-07-13-133002

Volcano Watch: Kilauea activity update for July 17, 2014

On Kīlauea’s East Rift Zone, the lava pond constructed over the June 27 breakout point has been abandoned, and, instead, tube-fed lava flows have begun to advance toward the northeast.

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A look at the lava shield formed from lava erupting from the June 27 vent with a thermal image camera June 30, 2014. The shield consists of a broad, and relatively flat, top with multiple narrow streams of lava flowing down the sides. Photo courtesy of USGS/HVO

Volcano Watch: Kilauea activity update for July 10, 2014

On Kīlauea’s East Rift Zone, the June 27 breakout continues to build a low shield, topped by a lava pond on the northeast flank of Pu‘u ‘Ō‘ō.

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A sketch by Joseph Nāwahī showing the 1881 lava flow approaching Hilo. (Courtesy of National Park Service, Hawai'i Volcanoes National Park, HAVO 394, Volcano House Guest Register 1873 to 1885, illustration by Joseph Nāwahī, February 21, 1881.)

Volcano Watch: Hilo was again threatened by a Mauna Loa lava flow in 1881

Hilo was threatened by lava during an eruption sequence that started at the summit in early May 1880. After a several-month hiatus, the sequence resumed on November 5, 1880.

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Volcano Watch: Kilauea activity update for June 26, 2014

A lava lake within Halema‘uma‘u produced nighttime glow that was visible via HVO’s Webcam during the past week.

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Volcano Watch: Kilauea activity update for June 19, 2014

A lava lake within Halema‘uma‘u produced nighttime glow that was visible via HVO’s Webcam during the past week. The lava lake level rose slightly, reaching about 118 ft below the rim.

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Volcano Watch: Kilauea activity update for June 5, 2014

A lava lake within Halema‘uma‘u produced nighttime glow that was visible via HVO’s Webcam during the past week.

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Map showing the Kahaualeʻa 2 flow in relation to the eastern part of the Island of Hawaiʻi as of May 30, 2014. Red stars mark active breakouts—the most distant was 6.2 km (3.9 miles) straight-line distance northeast of Puʻu ʻŌʻō. Older lava flows are distinguished by color: episodes 1–48b flows (1983–1986) are shown in gray; episodes 48c–49 flows (1986–1992) are pale yellow; episodes 50–55 flows (1992–2007) are tan; episodes 58–60 flows (2007–2011) are pale orange, and episode 61 flows (2011–2013) are reddish orange. The active lava tube is shown with a yellow line (dashed where its position is poorly known).

Volcano Watch: Improving lava-flow risk assessment for populated areas

Estimating the potential damage from future lava flows to infrastructure or development poses serious challenges to emergency managers.

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Volcano Watch: Kilauea activity update for May 29, 2014

On Kīlauea’s East Rift Zone, the Kahauale‘a 2 flow remains active but has diminished greatly in vigor over the past two weeks.

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Volcano Watch: Kilauea activity update for May 1, 2014

On Kīlauea’s East Rift Zone, the active front of the Kahauale‘a 2 flow was 8.3 km (5.2 miles) northeast of its vent on Pu‘u ‘Ō‘ō when mapped on Monday, April 28.

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Volcano Watch: Kīlauea Volcano’s Kahauale‘a 2 lava flow: Should Puna residents be concerned?

The Kahauale‘a 2 lava flow, fed by a vent on the northeast edge of the Pu‘u ‘Ō‘ō crater, is currently the only active flow along Kīlauea Volcano’s East Rift Zone.

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In Puʻu ʻŌʻō crater, a small lava pond (about 5 meters, or yards, wide) continued to be active and was still "gas pistoning" today. Gas pistoning is a cyclic rise and fall of the lava pond surface due to gas buildup and release. During the fall phase, intense spattering disrupts the lava pond surface and releases the accumulated gas. Each cycle lasted about five to ten minutes. Photo courtesy of USGS/HVO

Volcano Watch: Kilauea activity update for April 24, 2014

On Kīlauea’s East Rift Zone, the active front of the Kahauale‘a 2 flow was 7.5 km (4.7 miles) northeast of its vent on Pu‘u ‘Ō‘ō when mapped on Friday, April 18. Webcam images indicate that small, lava-sparked forest fires continue to burn.

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Volcano Watch: Kilauea activity update for April 17, 2014

On Kīlauea’s East Rift Zone, the Kahauale‘a 2 flow continued to be active northeast of Pu‘u ‘Ō‘ō. On Wednesday (April 9) the active flow front was 5.2 miles Northeast of the vent on Pu‘u ‘Ō‘ō.

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Jul 23, 2014 / 5:15 pm

 

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