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Video courtesy USGS, edited by Big Island Video News

VIDEO: Second Volcano Explosion This Week Caught On Webcam
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by Big Island Video News
on Dec 2, 2016 at 12:57 pm

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STORY SUMMARY

HAWAII VOLCANOES NATIONAL PARK (BIVN) - A large slab of the summit vent wall directly below the USGS Hawaiian Volcano Observatory webcam collapsed, triggering another small explosion at the summit of Kilauea.

HAWAII VOLCANOES NATIONAL PARK – The second explosive event to occur this week at the summit of Kilauea volcano was captured by webcams perched on the closed Halemaʻumaʻu Visitor Overlook.

At 6:58 a.m. Friday morning, a large slab of the summit vent wall directly below the USGS Hawaiian Volcano Observatory webcam collapsed. “Rocks falling into the lava lake triggered a small explosive event that bombarded the rim of Halemaʻumaʻu Crater with spatter,” or fragments of molten lava, scientists say.

The event was similar to Monday’s event. The November 28 explosion was also triggered by a rockfall.

Scientists say these rockfalls and explosions, which occur without warning, are why this hazardous area remains closed. USGS adds that sulfur dioxide gas emissions from the vent are also extremely hazardous.

Over the past week, the USGS reports the average daily sulfur dioxide emission rate at the summit has ranged from 2,300 to 6,600 metric tons per day. Deflationary tilt is ongoing, and seismic activity continues at a low rate.


Filed Under: Uncategorized Tagged With: Halemaumau, Hawaii Volcanoes National Park, Kilauea, lava lake, Volcano

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