The recording, captured by a passive acoustic recorder approximately 900 miles from the site of the OceanGate vessel’s demise, was produced by the National Oceanic and Atmospheric Administration (NOAA).

NOAA’s Ocean Noise Reference Station Network comprises 13 passive acoustic monitoring locations across the northeastern United States.

The audio begins with steady static, which is abruptly interrupted by a loud boom. The Coast Guard believes this sound indicates the Titan buckling under the immense pressure of the water, leading to the instantaneous loss of all aboard.

The Coast Guard reported that an audio clip captures the suspected acoustic signature of the Titan submersible’s implosion on June 18, 2023.

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Among the five victims were OceanGate CEO Stockton Rush, 61, who was piloting the Titan; renowned deep-sea explorer Paul-Henri Nargeolet, 77, known for his expertise in visiting the Titanic wreck; British entrepreneur Hamish Harding, 58; and Pakistani businessman Shahzada Dawood, 48, along with his 19-year-old son, Suleman. They were on a journey to view the Titanic wreck site in the North Atlantic Ocean off the coast of Canada.

The Titan lost contact with its support ship less than two hours into the voyage, prompting a desperate search effort.

The incident garnered public interest, particularly after reports of “banging noises” were detected, leading to discussions about the passengers’ chances of survival in the cramped, oxygen-depleted submersible.