Scientists identify source of mysterious deep-sea 'Bloop' sound off Florida

A mysterious deep-sea sound from 1997, initially thought to be a giant creature like a Megalodon, has been identified. Scientists now believe the "Bloop" noise, detected off Florida, was caused by an icequake from an Antarctic iceberg calving. Its unusual loudness fueled speculation about unknown marine life. The sound's origin was confirmed in 2005 by NOAA, which monitors seismic activity. This explanation disappointed some who hoped for a new species discovery.