Geologists conduct a VLF (very low frequency) survey across the epi...

HVO geologists conduct a VLF (very low frequency) survey across the...

Detailed Description

HVO geologists conduct a VLF (very low frequency) survey across the episode 61g lava tube to measure the depth and cross-sectional area of lava flowing within the tube.

Details

Image Dimensions: 5184 x 3456

Date Taken: