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# Thumper at Champlain Towers South site

## Appears In

                        - Sept. 29, 2022, Update: Champlain Towers South Investigation Completes Site Testing, Announces Next Advisory Committee Meeting
                        - National Institute of Standards and Technology

The Thumper, a mini “mobile shaker,” custom-built at the University of Texas at Austin, sent waves of specific frequencies into the ground at the site of the former Champlain Towers South building in Surfside, Florida. Underground and surface sensors pick up the signals sent from the truck, and the data reveal information about ground characteristics. 

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