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Julia Sound
NOAA recorded a strange sound rising from the eastern Pacific in 1999. It lasted 15 seconds and sounded like a moan or wail. Like the Bloop, it remains unexplained. The ocean speaks in voices we don't understand.
March 1, 1999
Pacific Ocean
5+ witnesses
The Julia Sound joined the Bloop as unexplained ocean mysteries.
The Recording
March 1, 1999:
- NOAA hydrophones
- Eastern Pacific
- 15-second duration
- Rising then falling
- Eerie sound
The Description
What it sounded like:
- Moan or wail
- Frequency changes
- Like vocalization
- Mechanical quality
- Deeply unsettling
The Source
Official theory:
- Large iceberg
- Dragging seafloor
- Antarctic origin
- Similar to Bloop
- Natural explanation
The Questions
What people wondered:
- Why so specific?
- Animal-like quality
- Repeated sounds
- Pattern in chaos
- Coincidence?
Other Sounds
NOAA’s collection:
- The Bloop
- Slowdown
- Whistle
- Train
- Upsweep
The Ocean
What we don’t know:
- 80% unexplored
- Deep trenches
- Unknown creatures
- Strange acoustics
- Mysteries remain