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20150317-usgs-June27thLavaFlow-02

Posted on March 17, 2015.

A Very Low Frequency (VLF) radio wave, transmitted from the Lualualei Naval Base on Oʻahu, is received by a handheld device by a HVO geologist. The numbers are read and recorded. These data will allow the estimation of the cross-sectional area of lava within the tube. Photo taken Tuesday, March 17, 2015 courtesy of USGS/HVO

A Very Low Frequency (VLF) radio wave, transmitted from the Lualualei Naval Base on Oʻahu, is received by a handheld device by a HVO geologist. The numbers are read and recorded. These data will allow the estimation of the cross-sectional area of lava within the tube. Photo taken Tuesday, March 17, 2015 courtesy of USGS/HVO


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