Skip to main content
U.S. flag

An official website of the United States government

Kīlauea summit on June 8, 2021

Detailed Description

On June 8, 2021, the USGS Hawaiian Volcano Observatory conducted a routine helicopter overflight and fieldwork at the summit of Kīlauea. Here, a geophysicist returns to the helicopter after making Global Positioning Systems (GPS) measurements. These surveys measure small changes in the ground surface caused by subsurface magma movement. This scientist carries a GPS antenna along with a field backpack with essential gear, including food, water, and a field first aid kit. USGS photo by C. Parcheta.


Public Domain.