Which mysterious sound was recorded in the Pacific Ocean in 1997 and is one of the loudest unexplained noises ever captured?
The Upsweep
The Bloop
The Sky Trumpets
The Hum
The "Taos Hum" is a low-frequency sound heard by residents in which country?
What name is given to the eerie trumpet-like sounds reported in the sky around the world?
Sky Whispers
Heaven's Call
Angel Echo
Sky Trumpets
The "Upsweep" is an unexplained sound detected by underwater listening devices in which ocean?
Atlantic Ocean
Indian Ocean
Arctic Ocean
Pacific Ocean
Which mysterious underwater sound was named for its fast-rising frequency pattern?
The "Hum phenomenon" is most commonly described as?
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Constant low-frequency droning
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High-pitched ringing
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Rhythmic thumping
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Loud explosive noise
Which unexplained sound was recorded near Antarctica and is suspected by some to be caused by ice activity?
Julia
Bloop
Slow Down
Upsweep
The "Forest Grove Sound" was a strange noise reported in which US state in 2016?
What is unusual about the "Lake Seneca Booms" in New York?
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Happen without earthquakes
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Can be heard only underwater
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Occur only during winter
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Last for exactly 10 seconds
The "Skyquake" phenomenon refers to?
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Earthquake aftershocks
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Sonic booms from military jets
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Rumbling noises in the upper atmosphere
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Thunder with no lightning
