Locating explosions, volcanoes, and more with infrasound

Sound with frequencies below the human threshold of hearing has long been used for global monitoring of large acoustic outbursts such as those in nuclear tests. Now infrasound is helping scientists detect much smaller events at close range.

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Bibliographic Details
Published in:Physics today 2011-04, Vol.64 (4), p.74-75
Main Authors: Szuberla, Curt A. L., Arnoult, Kenneth M.
Format: Article
Language:English
Subjects:
Equipment testing
Frequencies
Microphones
Scientists
Sound waves
Volcanoes
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Description
Summary:Sound with frequencies below the human threshold of hearing has long been used for global monitoring of large acoustic outbursts such as those in nuclear tests. Now infrasound is helping scientists detect much smaller events at close range.
ISSN:0031-9228
1945-0699
DOI:10.1063/1.3580503