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Tag Archive | "volcano watch"

Spatter landed on wooden fencing laying on the ground at the closed tourist overlook, igniting it in a few places. Photo taken on Wednesday (July 23). Photo courtesy of USGS/HVO

Volcano Watch: Kilauea activity update for July 24, 2014

A collapse at the Halemaumau Overlook Vent Wednesday (July 23) sent molten lava flying out of the vent and onto the abandonded visitor’s area burning the old wooden fencing.

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Composite false-color Landsat-8 satellite image of Semisopochnoi Island on July 14, 2014, produced by combining the shortwave infrared, near infrared, and visible wavelength data. This color combination enhances the visualization of vegetation, exposed rocks, and snow (light blue). This is a rare, partly cloudy satellite image and some of the volcanic features are indicated. The image does not show evidence of increased surface temperatures in response to the increased number of volcanic earthquakes that began in early June 2014. For information about Ladsat8 see the website: http://landsat.usgs.gov/index.php.

Volcano Watch: Five restless and erupting Alaska volcanoes keep scientists busy in June

Do you want to know which volcanoes in the U.S. are erupting or may be about to erupt? You can find answers on the U.S. Geological Survey’s Volcano Hazards Program website.

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Hawaii Volcanoes National Park. Lava tree mold with pieces of partly charred wood, which are remnants of the top of tree, on the 1823 lava flow of Kilauea Volcano. Photo by H.T. Stearns, July 11, 1924.

Volcano Watch: Description of Kīlauea eruptions started at a very opportune time

William Ellis led a team of missionaries on a tour of the Island of Hawaiʻi starting on July 18, 1823, from the village of Kailua. They were the first to publish a description of Kīlauea Crater.

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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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June 17, 2014, photo showing smoke produced by the incursion of the Kahauale‘a 2 flow into native forest 7.0 km (4.3 miles) northeast of Pu‘u ‘Ō‘ō , which is visible in the background. Photo courtesy of USGS/HVO

Volcano Watch: The Kahauale‘a 2 flow continues its slow, erratic advance

The Kahauale‘a 2 lava flow advanced yet again through late April and early May 2014. This period, however, was accompanied by more profound pressurization within the magma chamber beneath Kīlauea.

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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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Hawaii Volcanoes National Park. 1984 eruption of Mauna Loa Volcano. Fountaining at en echelon fissures. Photo by J.D. Griggs, March 25, 1984.

Volcano Watch: Mauna Loa—A Stirring Giant?

After a 30-year repose, Mauna Loa may be slowly stirring to life. While there are no signs of impending eruption, the Hawaiian Volcano Observatory has recorded an increased level of seismic activity on the flanks and summit over the past 13 months.

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The lava pond in the northeast portion of Puʻu ʻŌʻō crater remains active, and has built up a slightly elevated rim following several overflows over the past week. On June 6, 2014 the pond was gently gas pistoning - a process that involves the cyclic rise and fall of the lava level due to gas buildup and release.

Volcano Watch: Kilauea activity update for June 12, 2014

The lava lake level rose during the week, reaching about 40 m (130 ft) below the rim of the Overlook crater by Thursday, June 12.

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Volcano Watch: The 1855‒1856 Mauna Loa lava flow nearly devastated Hilo

On the evening of August 11, 1855, Mauna Loa erupted from a location described as 1,000 to 2,000 ft below the summit of the volcano. This sent a lava flow advancing toward Hilo.

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Jul 28, 2014 / 2:24 pm

 

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