Tag Archive | "hvo"

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Volcano Watch: Kilauea activity update for May 21, 2015

Kīlauea’s summit lava lake level dropped rapidly in response to summit deflation. Kīlauea’s East Rift Zone lava flow continues to feed widespread breakouts northeast of Puʻu ʻŌʻō.

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Kīlauea Volcano’s summit lava lake dropped from nearly overflowing on April 26, 2015 (left), to about 62 m (203 ft) below the newly created (by multiple overflows) vent rim on May 15, 2015 (right). Photo courtesy of USGS/HVO

Volcano Watch: Recent activity highlights Kīlauea Volcano’s restless nature

Kīlauea made the news this past month with many changes, including an elevated lava lake level at the volcano’s summit. So, what exactly happened over the past month, and what does it mean?

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Kīlauea Volcano's summit lava lake continued to drop today (May 15, 2015). Measurements of the lake surface late Friday afternoon (May 15) showed that it was 62 m (203 ft) below the top of the newly-created vent rim, a ridge (or levee) of solidified lava about 8 m (26 ft) thick that accumulated on top of the Halemaʻumaʻu Crater floor from multiple overflows of the vent during the past two weeks. Photo taken Friday, May 15, 2015 courtesy of USGS/HVO

Magma moves towards the Southwest Rift Zone after drop in Halemaumau lava lake

On Wednesday (May 13), the focus of deformation changed to the southern part of Kīlauea’s summit caldera and upper Southwest Rift Zone, where rapid and localized inflationary tilt was recorded.

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Volcano Watch: Kilauea activity update for May 14, 2015

Kīlauea’s summit lava lake dropped out of view early in the week in response to summit deflation. As of Thursday, May 14, the lake was about 120 feet below the vent rim.

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Volcano Watch: Restless activity beneath Mauna Loa continues

The recent high lava lake levels at Kīlauea Volcano have caught the attention of visitors and kama‘aina alike. But we shouldn’t forget that unrest at Mauna Loa continues.

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A faint dusting of volcanic ash, produced by a small rockfall-triggered explosion in the Kīlauea summit lava lake on April 25, 2015, fell on this car parked near Jaggar Museum. Light rainfall afterward caused the ash to clump. USGS photo.

Volcano Watch: Volcanic ash lands at Jaggar Museum during south wind

Visitors watching the lava from outside Jaggar Museum during a south (kona) wind may feel their skin prickle with excitement…or is it volcanic ash?

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The lava lake in the Overlook crater, within Halemaʻumaʻu Crater at Kīlauea's summit, remains at a high level and close to the Overlook crater rim. Overflows onto the Halemaʻumaʻu Crater floor have built up the rim of the Overlook crater several meters, and recent overflows are visible in the right side of the photograph. The lake level this afternoon was about 7 meters (yards) above the original (pre-overflow) floor of Halemaʻumaʻu Crater. Spattering was vigorous today in the southern portion of the lake. From this view, the spattering was hidden behind a portion of the Halemaʻumaʻu Crater wall, but airborne spatter can be seen in the bottom left portion of the photo. The summit of Mauna Loa can be seen in the upper right. Photo taken Thursday, May 7, 2015 courtesy of USGS/HVO

Volcano Watch: Kilauea activity update for May 7, 2015

Kīlauea’s summit lava lake was brimful throughout the week and occasionally overflowed onto the floor of Halema‘uma‘u Crater. A small explosive event on Sunday, May 3, threw spatter from the lava lake onto the rim of Halema‘uma‘u.

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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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May 22, 2015 / 5:15 pm

 

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