Bloop is the name given to an ultra-low-frequency and extremely powerful underwater sound detected by the NOAA in 1997. The sound is consistent with the noises generated by icequakes in large icebergs, or maybe large icebergs scraping the ocean floor. The sound's source was of the tip of South America. The sound was detected several times by the Equatorial Pacific Ocean autonomous hydrophone array.This system was developed as an autonomous array of hydrophones that could be deployed in any oceanographic region to monitor specific phenomena.
It is used primarily to monitor undersea seismicity, ice noise, and marine mammal population and migration. This is a stand-alone system designed and built by NOAA's Pacific Marine Environmental Laboratory (PMEL) to augment NOAA's use of the U.S. Navy Sound Surveillance System which was equipment originally designed to detect Soviet submarines. If the bloop was made by an animal, it would also be called the bloop and many believe that it would have to be bigger than a blue whale. However, an animal does not have to be very big to make loud noises. Take, for example, the Pistol Shrimp. It is the size of any other shrimp, yet it is as loud as a jet engine. The bloop has an equal chance of being a cryptid or a result of speculation.
