Scientists Thelen and Okubo at USGS Hawaiian Volcano Observatory
Detailed Description
USGS seismologists Wes Thelen (left) and Paul Okubo (right) working at the USGS Hawaiian Volcano Observatory.
Sources/Usage
Public Domain.
USGS seismologists Wes Thelen (left) and Paul Okubo (right) working at the USGS Hawaiian Volcano Observatory.
Public Domain.