Annual Surveys of Hawai‘i's Volcanoes Are Underway

Annual Surveys of Hawai‘i's Volcanoes Are Underway...

Detailed Description

An HVO geophysicist positions a GPS antenna (white disk on yellow tripod) precisely over a benchmark, or fixed reference point. Repeat measurements of the same benchmarks from year to year enable HVO to map ground movements on Hawai‘i's active volcanoes over time.

Details

Image Dimensions: 450 x 374

Date Taken: