Tag Archive | "volcano watch"

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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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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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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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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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May 27, 2015 / 5:16 pm

 

 

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