Question

What kind of waves are produced in anearthquake before the main shock wave
begins?​

Answer 1

Answer:

infrasonic waves begins before the main shock waves

Answer 2

${\huge{\purple{\underline{\underline{\red{\mathbb{\bigstar{\red{ANSWER}}}}}}}}}$

$Infrasonic \: waves \: are \: produced \\ in \: an \: earthquake \: before \: the \: main \\ shock \: wave \: begins.$

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