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U.S. shared data with Canada about acoustic 'anomaly' found during Titan sub search

Canadian authorities searching for a missing submersible were made aware of an acoustic "anomaly consistent with an implosion" found by U.S. counterparts, officials confirmed to CBC News, but continued searching for the doomed vessel because the data was "not definitive."

U.S. navy says its acoustic sensors detected sound 'consistent with an implosion'

Titanic tourist submersible destroyed: How it happened | About That

1 year ago
Duration 6:49
Wreckage from the missing Titan submersible has been found near the site of the Titanic. All those who were on board are lost at sea. Andrew Chang explains what happened and how the Titan was destroyed.

Canadian authorities searching for a missing submersible were made aware of an acoustic "anomaly consistent with an implosion" found by U.S. counterparts, officials confirmed to CBC News, but continued searching for the doomed vessel because the data was "not definitive."

The U.S. navy said Thursday its acoustic sensors detected the sound in the deep area of the ocean near the Newfoundland coast where the Titanic-bound Titan sub was operating on Sunday, several hours before it was reported missing.

All five passengers and crew of the Titan were presumed dead Thursday soon after a crew guiding a remotely operated vehicle spotted the Titan's wreckage about 500 metres from the Titanic's bow, almost four kilometres below the surface of the North Atlantic.

In an email, a senior U.S. navy official said an analysis of the acoustic data was shared with the "unified command" conducting the search, which was led by the U.S. Coast Guard and included the Canadian Coast Guard and OceanGate, the company operating the Titan.

In a statement to CBC News, a spokesperson for Canada's Department of National Defence confirmed Friday that the data was shared with the Canadian Armed Forces but it was determined the "information assessment was not definitive" that the Titan was the source of the anomaly. 

A satellite image shows ships in the ocean.
A satellite image shows ships taking part in the search and rescue operations associated with the missing Titan submersible near the wreck of the Titanic on Thursday. (Maxar Technologies/Reuters)

"There was still hope for safe recovery," spokesperson Jessica Lamirande said. "As such, search and rescue efforts continued."

The U.S. navy has long maintained a network of listening devices on the floor of the North Atlantic to detect hostile submarines. But information about the anomaly wasn't shared with the public until after the Titan's wreckage was found and all five aboard were presumed dead.

Read more from CBC Newfoundland and Labrador

With files from The Canadian Press