USGS Seismometer
![close-up of steel cylinder with cables and bright red and yellow caps coming out of it.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/CVO_Seismometer.jpg?itok=KLXoN_Pe)
Detailed Description
Seismometers (instruments for recording earthquakes) are tested and fitted at the USGS Cascades Volcano Observatory before going out into the field.
Sources/Usage
Public Domain.
Seismometers (instruments for recording earthquakes) are tested and fitted at the USGS Cascades Volcano Observatory before going out into the field.
Public Domain.