Seismographs at the U.S. Geological Survey

(Credit: J.K. Nakata, U.S. Geological Survey. Public domain.)
Detailed Description
Details
Image Dimensions: 756 x 512
Date Taken:
Location Taken: Menlo Park, CA, US
Image Dimensions: 756 x 512
Date Taken:
Location Taken: Menlo Park, CA, US