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The national seismological service is designing a training for new members in which they are asked to calculate the epicentral
distance simulating an earthquake of magnitude 8.5
The information provided is as follows: surface waves generally have a frequency of 0.5 Hz and the intensity of the P wave in
Mexico City was 2x106 J What is the power of a area of 483 m²?
m³s"
4.83× 108 W
4.141 x 10³ W
9.66 × 108 W
9.66× 102 W

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