Tag Archive | "hvo"

A portion of the Halemaʻumaʻu Crater wall collapsed at 1:20 p.m. Sunday, May 3, 2015, impacting the lava lake and triggering a small explosion of spatter and a robust particle-laden plume. Fist-size clasts were deposited around the closed Halemaʻumaʻu visitor overlook. Photo taken Sunday, May 3, 2015 courtesy of USGS/HVO

Rockfall into lava lake triggers explosion Sunday (May 3)

A portion of the Halemaʻumaʻu Crater wall collapsed at 1:20 p.m. Sunday, May 3, 2015, impacting the lava lake and triggering a small explosion of spatter and a robust particle-laden plume.

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Identical to photo at previous, but with labels. The dashed white line indicates the lava lake rim. Photo taken Thursday, April 29, 2015 courtesy of USGS/HVO

Volcano Watch: Kilauea activity update for April 30, 2015

Kīlauea’s summit lava lake rose during the past week, tracking summit inflation, and began to overflow sporadically. On Thursday (April 30) the summit had begun to deflate slowly, and the lava lake level had dropped slightly.

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An early morning view of the lava lake with a recent overflow onto the floor of Halemaʻumaʻu Crater. Photo taken Thursday, April 29, 2015 courtesy of USGS/HVO

Volcano Watch: Halema‘uma‘u Crater is making headlines again

This past week saw the first time that a lake of lava within Halema‘uma‘u Crater has been visible from Park visitor overlooks since 1974.

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Explosion in Halemaumau’s lava lake hurls molten lava into old observation area

A rockfall into Halemaumau’s lava lake Tuesday morning (April 28) caused an explosion of lava sending molten lava and fragments 280 feet up onto the old observation area. Tuesday evening about 9 p.m. webcams recorded the lava lake overflowing onto Halemamau crater’s floor.

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Pu'u 'O'o Crater's North Flank from the North Rim. April 28, 2015. Image courtesy of USGS/HVO

LavaTalk: April 28, 2015 update on Kilauea’s lava flow

The recent rise of the lava lake within the Halema‘uma‘u Crater vent at the summit of Kīlauea has not resulted in any significant change or increased activity at Pu‘u ‘Ō‘ō.

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The Mauna Loa Solar Observatory with Mauna Kea in the background. Photo courtesy of MLSO

Volcano Watch: Mauna Loa Observatory — The Keeling Curve recognized as landmark science

Continuous CO2 monitoring began on Mauna Loa in 1958, when Charles David Keeling installed state-of-the-art instrumentation high on the remote north flank of the volcano and began carefully measuring the amount of CO2 in the air.

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This satellite image was captured on Monday, April 20, 2015 by the Landsat 8 satellite. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds. The lava flow field is partly obscured by clouds, but the image shows much of the activity on the June 27th flow. There have been three areas of breakouts active on the June 27th flow recently. The breakout on the north flank of Puʻu ʻŌʻō is obscured by clouds, but the breakout north of Kahaualeʻa is visible through patchy clouds in this image. This breakout has been active recently at the forest boundary, triggering small brush fires. The farthest breakout is about 6 km (4 miles) northeast of Puʻu ʻŌʻō, and consists of scattered activity at the forest boundary.

Volcano Watch: Kilauea activity update for April 23, 2015

Kīlauea’s summit began to inflate on Tuesday, April 21, and was still inflating as of Thursday. The lava level in the summit lava lake rose in concert to it’s highest level since 2008.

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Volcano Watch: Lava from Pu‘u ‘Ō‘ō is still active, but not an immediate threat

Lava erupting from Pu‘u ‘Ō‘ō since mid-March 2015 has spread slowly and irregularly across three areas. These active lava flows are not presently posing an immediate threat to any community in the Puna District of the Island of Hawai‘i.

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Volcano Watch: Kilauea activity update for April 16, 2015

There have been no major changes at Kīlauea’s summit vent, which continues to host an active lava lake. Kīlauea’s East Rift Zone lava flow continues to feed three areas of breakouts northeast of Puʻu ʻŌʻō.

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Volcano Watch: Kilauea activity update for April 9, 2015

Kīlauea’s East Rift Zone lava flow continues to feed three areas of breakouts near Puʻu ʻŌʻō. The front of the breakout farthest downslope had advanced very little over the past week.

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Magnitude 4.5 quake strikes near Kailua-Kona Sunday (April 5)

The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.5 earthquake located near Kailua-Kona on the Island of Hawaiʻi on Sunday, April 5, at 3:23 a.m., HST. The Pacific Tsunami Warning Center determined that no damaging tsunami was generated

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In the time since our last overflight (March 24), a new collapse pit has formed in the western portion of Puʻu ʻŌʻō Crater. This circular pit can be seen in the lower left portion of the photograph, and measures about 27 m (roughly 90 ft) in diameter. Numerous hot cracks were observed in this general area during previous visits on foot. Photo taken Friday, April 3, 2015 courtesy of USGS/HVO

LavaTalk: April 3, 2015 update on Kilauea’s lava flow

All breakout activity remain in the upslope portion of the June 27th flow field near the vent.

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May 4, 2015 / 5:15 pm

 

 

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