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re: Just had earthquake in NYC
Posted on 4/5/24 at 6:29 pm to RogerTheShrubber
Posted on 4/5/24 at 6:29 pm to RogerTheShrubber
quote:
But I'm hypersensitive to them now, and know theyre coming before most others.
But is such a thing even possible?
Yes, yes it is.
Seismic P & S Waves
“In air, P waves take the form of sound waves and therefore move at the speed of sound, 330m/s at sea level. Some people even report hearing an earthquake (due to the higher frequency P waves vibrating or rustling objects) before they feel the S waves' arrival. Typical speeds in the Earth are faster: 1450m/s in water and 5000m/s in granite.”
The S (shear) wave causes most all the destruction.
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