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CASE #5ZH4S6 · 2 entities · 1 connections
The Bloop
In 1997, ocean microphones picked up a sound louder than anything a living creature should be able to make.
In 1997, NOAA's deep-ocean hydrophones detected an extremely loud, ultra-low-frequency sound nicknamed "the Bloop," powerful enough to be picked up by sensors thousands of miles apart. Early speculation pointed to an unknown giant marine animal before researchers linked it to Antarctic ice activity in 2012.
⇄disputed
Quick facts
- →The sound was detected by hydrophones thousands of miles apart, allowing rough triangulation to the South Pacific.
- →Its volume was far beyond what any known marine animal, including blue whales, was believed capable of producing.
- →NOAA conducted a dedicated multi-year Antarctic acoustic survey specifically to investigate it.
- →In 2012, NOAA formally attributed the sound to icequakes — cracking icebergs, not a creature.
Entities on file
The Bloop (document)
1997 hydrophone recording of an extremely loud, unexplained deep-ocean sound, later attributed to icequakes.
No outgoing connections on file.
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NOAA (organization)
Recorded the Bloop and later explained it through a dedicated Antarctic acoustic survey.
→ recorded and later explained → The Bloop✓documented