Explosions help probe elusive atmospheric waves

Infrasound waves can probe some of the most complex weather patterns hidden to normal observations, but finding a powerful enough source of infrasound waves can be a challenge unless there is a munitions factory nearby.

Hawaiʻi phones capture data in Tonga volcano blast

The explosion of the underwater volcano Hunga Tonga-Hunga-Haʻapai on January 15, released a blast "sound" wave that reverberated through Earth's atmosphere and was recorded around the world by monitoring stations—and smartphones. ...

Stratospheric balloons listen in on ground activity

Earthquakes, volcanic eruptions, and even severe weather events produce a medley of low-frequency infrasound waves below the range of human hearing. Researchers can investigate these sounds to gain a deeper understanding ...

Decoding tornadoes' infrasound waves

Infrasound waves oscillate at frequencies humans can't hear, but they're extremely useful for monitoring nuclear blasts because infrasound decays so slowly within our atmosphere that it can wrap around Earth multiple times. ...

Detecting volcanic eruptions

To borrow from a philosophical thought experiment: If a volcano erupts in a remote part of the world and no one hears it, does it still make a sound?

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