Geomagnetism Honolulu
By Geomagnetism Program
2018 (approx.)
![Ewa Beach Hawaii magnetic observatory located at the former NOAA Pacific Tsunami Warning Center, PTWC.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/HON_022_half_size.jpg?itok=eqrrfFZ0)
Detailed Description
Ewa Beach Hawaii magnetic observatory located at the former NOAA Pacific Tsunami Warning Center, PTWC.
Sources/Usage
Public Domain.