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Message Subject
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Earthquake Thread ~ Always Updated
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Poster Handle
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Simple27 |
Post Content
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15 things you may not know about earthquakes Human beings can detect sounds in the frequency range of 20-20,000 Hertz. Most earthquake waves have a frequency of less than 20 Hz, so the waves themselves are usually not heard. Most of the rumbling noise people hear during an earthquake comes from the movement of the building they are in or the building’s contents. [ link to www.ajc.com (secure)] Quoting: Goofy for God Lots of good info in that link, thank you.
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