July 2, 2024 — Leveling the UWE tiltmeter at the summit of Kīlauea
![Color photograph of field engineer vacuuming sand from a borehole](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/multimediaFile-4086.jpg?itok=5E0NKW3L)
Detailed Description
Before the UWE tiltmeter could be leveled, sand had to removed from the six-meter-deep (20 feet) borehole housing the tiltmeter. HVO field engineers use a high-power vacuum to remove the sand, in order to access the tiltmeter. USGS image by M. Warren.
Sources/Usage
Public Domain.