The Bloop Sound: Caused by the biggest animal or creature ever? An enormous underwater creature, many times larger than the blue whale, caused a sound so loud it was heard by scientists 3000 miles apart. Was it a blue whale, a kraken, megalodon, colossal squid or maybe even Cthulhu awakening from his slumber?
In 1997, an array of hydrophones, special underwater microphones used by scientists to study happenings under the ocean, detected an extremely loud and low frequency sound that was able to be heard more than 3000 miles away from its source.
In 1997, an array of hydrophones, special underwater microphones used by scientists to study happenings under the ocean, detected an extremely loud and low frequency sound that was able to be heard more than 3000 miles away from its source.