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Fume rises from lava fountains erupting along a six-mile long fissure on Mauna Loa's Southwest Rift Zone on June 2, 1950. Such fume may have ultimately been responsible for the Mystery Haze in Honolulu on June 13. Credit: Air National Guard, 199th Fighter Squadron.

Volcano Watch: The Mystery Haze of 1950 – vog by another name would look as clear

On June 13, 1950, Honolulu was suddenly blanketed by the thickest haze seen since recordkeeping began there in 1906. The haze was first noticed four days earlier at Johnston Island, 800 miles southwest of O‘ahu.

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Volcano Watch: Kilauea activity update for April 27, 2017

This past week, Kīlauea Volcano’s summit lava lake level fluctuated in concert with summit inflation and deflation, ranging 13-22 m (43-72 ft) below the vent rim.

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Rock identified by Tai Sing Loo as the one that hit Truman Taylor

Volcano Watch: HVO volunteer Ben Gaddis receives the “Citizen’s Award for Exceptional Service”

Ben Gaddis, retired judge and Photo Archive volunteer at the HVO has organized, labeled, scanned, and entered metadata for thousands of color slides and black and white photos.

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Volcano Watch: Kilauea activity update for April 20, 2017

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

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(Image courtesy of TMT)

TMT contested case hearing transcripts now available to public at five libraries

Five public libraries on Hawai‘i island and O‘ahu now have copies of transcripts from Contested Case HA-16-02 regarding the Conservation District Use Application (CDUA) for the Thirty Meter Telescope at the Mauna Kea Science Reserve. The copies are available for public review but they cannot be checked out. Any parties to the contested case or […]

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Volcano Watch: What’s Hot and Not in Lava Field Fashion

With most visitors to Hawaii not packing much real hiking gear, it’s not uncommon to see visitors to the ocean entry that are not dressed for the adventure.

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The Kamokuna ocean entry, with the laze plume blocking the view of the delta. The billowing white cloud rising from the ocean entry is a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs. Photo taken Monday, April 10, 2017 courtesy of USGS/HVO

Volcano Watch: Kilauea activity update for April 13, 2017

Kīlauea continues to erupt at its summit and East Rift Zone.

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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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Apr 28, 2017 / 5:15 pm

 

 

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