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VolcanoWatch 26 June 2011

Posted by feww on June 26, 2011

VoW: The Restive Kīlauea

Kīlauea: Probably the World’s Most Active Volcano

Kīlauea is the youngest volcano on the Big Island of Hawai`i.

The active lava lake in Pu`u `Ō `ō and its levee. View looking east into Pu`u `Ō `ō, its crater partly filled by lava flows accumulating on the crater floor. The active lava lake in the crater is 205 m (673 ft) long and varies in width from 80–115 m (262–377 ft). The West Gap pit is in the central foreground, and the Puka Nui and MLK pits are to the right (the MLK pit is in back). The crater has filled in vertically about 100 m (328 ft) since the crater collapsed on March 5, 2011, at the start of the uprift Kamoamoa eruption. It still has about 12 m (39 ft) to go to reach the level of the crater floor prior to the collapse. Source of image and caption: HVO. Click images to enlarge.

Lighter-colored patches of lava on the crater floor are recent overflows. Source: HVO.

Along with overflows, low-level spattering from points wandering around the perimeter of the lava lake continually builds up the levee that impounds the lake. Source: HVO.

The lava lake’s levee stands up to 8 m (26 ft) above the surrounding crater floor. This steep-sided levee impounds the lava and forms what is called a “perched” lava lake. Pieces of the rim occasionally collapse into the lake, leading to sudden and fast-moving overflows of lava onto the crater floor. Source: HVO.

Map of Kīlauea. Source: HVO

  • Location: 19.425ºN 155.292ºW
  • Elev.: 1,277 m a.s.l.
  • Area: 1,430 km2 (13.7% of Hawai`i)
  • Volume: 25,000-35,000 km3

Click HERE for more images and information …

Weekly Volcanic Activity Report

(based on SI /USGS report for 15 June – 21 June 2011)

New activity/unrest:

FEWW Map of Volcanoes

Map of Volcanoes. Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

Ongoing Activity

Current Alerts for U.S. Volcanoes

  • Kilauea Watch Orange 2011-06-25 07:53:30
  • Pagan Advisory Yellow 2011-06-24 10:23:48
  • Long Valley Volcanic Center Normal Green 2011-06-24 17:58:30
  • Mauna Loa Normal Green 2011-06-04 07:16:42
  • Hualalai Normal Green 2011-06-04 07:16:42
  • Haleakala Normal Green 2011-06-04 07:16:42
  • Mauna Kea Normal Green 2011-06-04 07:16:42
  • Yellowstone Normal Green 2011-06-01 14:15:51
  • Lo`ihi Unassigned 2011-06-04 07:16:42

US Volcanoes: Webcams

Related Links

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