Tag Archive | "kilauea"

The lava lake within Halemaʻumaʻu, a crater at the summit of Kīlauea, was about 30 m (98 ft) below the vent rim on the day of this photo (Jan. 7, 2016). Orange lines on the lake surface were the result of lava lake circulation; as lava moved from left to right, sections of the dark-colored, semi-solid lake surface pulled apart, revealing incandescent molten lava beneath the crust. Vigorous spattering (bright yellow area at right) often occurs where circulating lava sinks back into the lake. USGS photo by T. Orr.

Volcano Watch: New USGS video about Kīlauea Volcano’s summit eruption is now online

(Volcano Watch is a weekly article written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.) In March 2008, a new volcanic vent opened within Halema‘uma‘u, a crater at the summit of Kīlauea in Hawaiʻi Volcanoes National Park on the Island of Hawaiʻi. The eruption continues today, with continuous degassing, occasional explosive events, and […]

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Volcano Watch: Kilauea activity update for October 19, 2017

On the East Rift Zone, the 61g flow remained active, with lava reaching the Kamokuna delta and surface breakouts downslope of Pu‘u ‘Ō‘ō.

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Time-lapse image of multiple lava cascades on the sea cliff on October 4 at 3:31 am (HST). Just a few of the many resulting surface flows can be seen on the delta both below the cliff and near the front, which is lit by lava and moonlight. Photo taken Friday, October 6, 2017 courtesy of USGS/HVO

Volcano Watch: Kilauea activity update for October 12, 2017

This past week, Kīlauea Volcano’s summit lava lake level fluctuated with summit inflation and deflation, ranging about 32–39 m (105–128 ft) below the vent rim.

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Volcano Watch: Kilauea activity update for October 5, 2017

Mauna Loa is not erupting. During the past week, small-magnitude earthquakes continued to occur beneath the summit caldera and upper Southwest Rift Zone, primarily at depths less than 3 miles.

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Volcano Watch: Kilauea activity update for September 28, 2017

This past week, Kīlauea Volcano’s summit lava lake level fluctuated with summit inflation and deflation and ranged about 112–174 feet below the vent rim.

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Volcano Watch: Kilauea activity update for September 21, 2017

On the East Rift Zone, the 61g flow remained active, with lava entering the ocean near Kamokuna and surface breakouts downslope of Pu‘u ‘Ō‘ō.

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Volcano Watch: Kilauea activity update for September 14, 2017

This past week, Kīlauea Volcano’s summit lava lake level fluctuated with summit inflation and deflation and ranged about 31–53.5 m (102–175 ft) below the vent rim.

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Volcano Watch: Kilauea activity update for September 7, 2017

This past week, Kīlauea Volcano’s summit lava lake level fluctuated in concert with summit inflation and deflation, ranging about 54–103 feet below the vent rim.

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Volcano Watch: Tephra deposit names – out with the old, in with the new!

The name Keanakāko‘i was used, because good outcrops of the deposits are found near the crater of that name in Kīlauea caldera.

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Volcano Watch: Kilauea activity update for August 31, 2017

This past week, Kīlauea Volcano’s summit lava lake level fluctuated in concert with summit inflation and deflation, ranging about 105–125 feet below the vent rim.

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Volcano Watch: Kilauea activity update for August 24, 2017

On the East Rift Zone, the 61g flow remained active, with lava entering the ocean near Kamokuna and surface breakouts downslope of Pu‘u ‘Ō‘ō.

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The flow front of the June 26 breakout (pictured above) has stalled. On the coastal plain today, the closest active breakouts found by HVO geologists were 2.1 km (1.3 miles) upslope from the emergency route. There were a few areas of active pāhoehoe breakouts which varied from sluggish ropey textures to thin and fluid flows. Photo taken Tuesday, August 15, 2017 courtesy of USGS/HVO

Volcano Watch: Kilauea activity update for August 17, 2017

This past week, Kīlauea Volcano’s summit lava lake level varied 28–44 m (92-144 ft) below the vent rim, with fluctuations in concert with summit inflation and deflation.

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Oct 20, 2017 / 9:58 am