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dezoksy [38]
3 years ago
14

How long after receiving the first p wave from an earthquake centered 4000 km away does a seismic station receive its first S wa

ve from the same earthquake?
Geography
1 answer:
Lilit [14]3 years ago
4 0
The answer is "5 minutes and 35 seconds".

Earthquakes create three kinds of seismic waves which are:P-waves that are primary waves, S-waves that are secondary wavesand surface waves,which land at seismic account stations in a steady progression.Both P and S waves enter the inside of the Earth while surface waves don't. Because of this, P and S waves are known as "body waves"
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<u>Answer:</u>


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He proposed that the continents move on another denser layer of the Earth that made up the ocean floor. But it was not until the 1960s, with the development of the theory of tectonic plates, that the movement of the continents could be adequately explained.

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