Julia (unidentified sound)
Encyclopedia
"Julia" is a sound recorded on March 1, 1999 by the U.S.
National Oceanic and Atmospheric Administration
(NOAA). NOAA said the source of the sound was unknown, but sufficiently loud to be heard over the entire Equatorial Pacific Ocean autonomous hydrophone array
. It lasted for about 15 seconds, and its origin was in the equatorial Pacific Ocean
at approximately 15° S 98° W.
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
National Oceanic and Atmospheric Administration
National Oceanic and Atmospheric Administration
The National Oceanic and Atmospheric Administration , pronounced , like "noah", is a scientific agency within the United States Department of Commerce focused on the conditions of the oceans and the atmosphere...
(NOAA). NOAA said the source of the sound was unknown, but sufficiently loud to be heard over the entire Equatorial Pacific Ocean autonomous hydrophone array
SOSUS
SOSUS, an acronym for Sound Surveillance System, is a chain of underwater listening posts across the northern Atlantic Ocean near Greenland, Iceland and the United Kingdom — the GIUK gap. It was originally operated by the United States Navy for tracking Soviet submarines, which had to pass...
. It lasted for about 15 seconds, and its origin was in the equatorial Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...
at approximately 15° S 98° W.