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Reply #9: It has to do with how earthquakes travel through the ground. [View All]

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Make7 Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Dec-29-04 08:34 AM
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9. It has to do with how earthquakes travel through the ground.
"the number of seconds between the P and S wave times 5 is approximately the distance in miles to the earthquake."

"Many animals can hear and feel P waves but humans can not. This is why it is thought that animals can sense when an earthquake is coming. The animals can feel the beginning of the earthquake that the less sensitive humans do not feel."

Speed of Sound through the Earth

_____________________________

So animals may notice something (P waves) a number of seconds before most people will feel anything (S waves), depending on the distance to the earthquake. Interesting.

-Make7
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