Question

In which seismogram is the time probe placed at the beginning of the P waves?

Seismogram A
Seismogram B
Seismogram C
Seismogram D

Answer 1

i believe it is C because the c line doesnt actually start till u see the signal wave. That's what my teacher told me anyhow.

Answer 2

Answer;

Seismogram C

Explanation;

In Seismogram C the time probe is placed at the beginning of the P waves because the C line doesn't start till u see the signal wave.

A seismogram is a graph output or a record written by a seismograph in response to ground motions produced by an earthquake, explosion, or other ground-motion sources.. It is a record of the ground motion at a measuring station as a function of time.