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Two HVO geologists document road cutting activities on HWY 132

By Kīlauea
Color photograph showing two geologists at road construction through lava flow
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Detailed Description

Two HVO geologists document road cutting activities on HWY 132 on August 7, 2019. One geologist is taking visual photographs while another geologist is taking thermal photographs to make a tandem pair for comparison. The temperature of the solidified lava was measured to 425° C (800° F) at the digging site. 

Sources/Usage

Public Domain.