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I 1 1 1 1 1 1 Minutes	r —i—i—i—
P \vave	S wave i

i

1

I

FIGURĘ 5.4 A scismogram is a record of gronnd motion Jetecred hy a seismometcr. Here, rhe seismogram sliows rhe nrrival cimcs of primary (p), secondary (S), and surface \vavcs Irom a piśmie evenr.