Volcanic Activity at Kilauea
acquired January 15, 2011 download large image (1 MB, JPEG, 2266x3222)

Over the past several weeks, a pit within Halema’uma’u Crater (on the summit of Kilauea Volcano) has steadily emitted sulfur dioxide and other volcanic gases. About 120 meters (390 feet) below the pit’s opening, a lava pond rises and falls as magma moves underneath Kilauea.

Sulfur dioxide emissions were 550 metric tons per day (1,200,000 pounds) on January 3rd, 2011, well above the daily average of 125 metric tons (280,000 pounds) from 2002–2006. Sulfur dioxide emissions at Kilauea peaked at about 2,000 metric tons (4,400,000 pounds) per day in March 2008, when the pit in Halema’uma’u first opened.

Kilauea Caldera, Halema’uma’u Crater, and the volcanic plume are all visible in this natural-color satellite image acquired on January 15, 2011 by the Advanced Land Imager (ALI) aboard theEarth Observing-1 (EO-1) satellite.

  1. References

  2. Elias, T., and Sutton, A. J. (2007). Sulfur Dioxide Emission Rates from Kīlauea Volcano, Hawaii, an Update: 2002-2006. U.S. Geological Survey, Reston, Virginia. Accessed January 19, 2010.
  3. USGS Hawaiian Volcano Observatory. (2008). New gas vent in Halema’uma’u crater doubles sulfur dioxide emission rates. Accessed January 19, 2010.
  4. USGS Hawaiian Volcano Observatory. (2010). Recent Kilauea Status Reports, Updates, and Information Releases. Accessed January 19, 2010.

NASA Earth Observatory image by Jesse Allen and Robert Simmon, using ALI data from the EO-1 team. Caption by Robert Simmon.

Instrument(s): 
EO-1 - ALI

Volcanic Activity at Kilauea

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