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Which waves arrive at a seismograph first? a. P waves b. S waves c. transverse waves d. surface waves

Verified Answer :

I believe the answer is a, primary waves

Answer:

The P wave is designated the primary preliminary wave because it is the first to arrive at a seismic station after an earthquake. It travels at a speed usually less than 6 kilometers per second in the Earth's crust and jumps to 13 kilometers per second through the core.

Explanation:

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