field engineers upgrade a tiltmeter on Kīlauea
![field engineers upgrade a tiltmeter on Kīlauea](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/image1-1354.jpg?itok=lVOX8P8c)
Detailed Description
USGS Hawaiian Volcano Observatory field engineers upgrade a tiltmeter on Kīlauea Volcano's East Rift Zone. The upgrade consisted of switching the old analog instrument to a newer digital model. This tiltmeter is used to track magma movement within the volcano.
Sources/Usage
Public Domain.