USGS Multimedia Gallery
Title: Vibrating Trailer for Seismic Reflection Surveys
Towed behind a pickup truck, this large heavy trailer (with two white water tanks on the back for added weight) vibrates and sends low-amplitude sound waves into the ground. An array of seismometers record the returning echoes. Computer processing of the recordings will produce a picture of the Earth that is similar to sonograms used in medical imaging.
Location: Los Angeles, CA, USA
Date Taken: 2007
Photographer: Thomas Pratt , U.S. Geological Survey
Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.
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