Tag Archive | "lavatalk"

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Volcano Watch: For Sutton, it’s been a gas!

Hawaiian Volcano Observatory (HVO) staff, alumni and friends recently gathered to honor the long and fruitful career of Jeff Sutton, our recently retired colleague.

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Volcano Watch: Kilauea activity update for April 6, 2017

This past week, the summit lava lake level varied between about 12 and 41 m (39-135 ft) below the vent rim. The 61g flow was still active, with lava entering the ocean and building a small delta near Kamokuna.

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Bogoslof Island before the 2016-17 eruption (LEFT) and on March 11, 2017 (RIGHT) The island has tripled in size as ash and explosive debris have accumulated around the eruptive vent. USGS figure courtesy of the Alaska Volcano Observatory. Image data provided under Digital Globe NextView License.

Volcano Watch: Bogoslof Volcano, Alaska: ongoing eruption through the Bering Sea

Hawaii is not the only island in the United States with an ongoing eruption involving hot lava and cold water.

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Volcano Watch: Kilauea activity update for March 30, 2017

Kīlauea continues to erupt at its summit and East Rift Zone. This past week, the summit lava lake level varied between about 14 and 34 m (46-112 ft) below the vent rim.

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The Coast Guard is establishing a temporary safety zone for the navigable waters surrounding the Kilauea Volcano active lava flow entry into the Pacific Ocean on the southeast side of the Big Island, Hawai’i, March 28, 2017. 



The temporary safety zone will encompass all waters extending 300 meters (984 feet) in all directions around the entry of the lava flow into the ocean from March 28 to Sept. 28.  Experts from the U.S. Geological Survey recommend 300 meters as the minimum safe distance to avoid hazards from the lava flow.



The Coast Guard has taken action to ensure public safety because of the danger the unstable sea cliff, volcanic shrapnel, toxic gases and potential bench collapses pose to vessel traffic and the public. As long as lava enters the ocean, further sea cliff degradation, hazardous conditions, delta construction and collapse are likely to occur.  These collapses occur with little to no warning and cannot be predicted. 



(U.S. Coast Guard graphic by Sector Honolulu/Released)

Coast Guard sets safety zone around lava flow Kamokuna ocean entry

The temporary safety zone will encompass all waters extending 300 meters (984 feet) in all directions around the entry of the lava flow into the ocean.

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Volcano Watch: Volcanic explosions provide the foundation for agriculture

In the plantation era, a great amount of effort and capital was invested in creating a series of water tunnels to capture groundwater in Ka‘u. Each supplied between 80,000 to 1,200,000 gallons of water per month.

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Volcano Watch: Kilauea activity update for March 23, 2017

Kīlauea continues to erupt at its summit and East Rift Zone. This past week, the summit lava lake level varied between about 14 and 32 m (46 – 105 ft) below the vent rim.

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Volcano Watch: Kīlauea Volcano’s summit eruption in Halemaʻumaʻu Crater reaches 9th anniversary

Kīlauea Volcano’s summit eruption in Halemaʻumaʻu Crater began in March 2008. Since that time, countless changes have occurred.

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Volcano Watch: Kilauea activity update for March 16, 2017

The 61g flow was still active, with lava entering the ocean near Kamokuna and small surface breakouts downslope of Puʻu ʻŌʻō on the pali and the coastal plain.

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Volcano Watch: Kilauea activity update for March 9, 2017

Kīlauea continues to erupt at its summit and East Rift Zone. This past week, the summit lava lake level varied between about 13 and 34 m (43-112 ft) below the vent rim.

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Volcano Watch: Recent collapses at the Kamokuna ocean entry underscore on-going hazard

Lava deltas are inherently unstable. They are typically built on top of loose rock fragments that form when the incoming lava hits cold ocean water and shatters.

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Flurry of 31 quakes concentrated southeast of Kilauea summit Sunday (March 5)

The Hawaiian Volcano Observatory reports that, starting just before 6 a.m. Sunday, (March 5), a flurry of small earthquakes occurred on Kīlauea Volcano’s upper East Rift Zone.

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May 25, 2017 / 5:15 pm

 

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