Strong earthquakes produce P-waves with which combination of amplitude and frequency?

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Get ready for the Dual Enrollment Earth Science Test. Study strategically with multiple choice questions that include hints and detailed explanations.

Multiple Choice

Strong earthquakes produce P-waves with which combination of amplitude and frequency?

Explanation:
Strong earthquakes release a lot of energy, and the rupture lasts longer over a larger area. That combination fills the early P-waves with ground motion that is large in size but dominated by longer periods, meaning lower frequencies. So the P-waves from big quakes carry high amplitude at lower frequencies. Smaller quakes don’t show that same level of energy or long-period content, which is why this pairing doesn’t fit as well.

Strong earthquakes release a lot of energy, and the rupture lasts longer over a larger area. That combination fills the early P-waves with ground motion that is large in size but dominated by longer periods, meaning lower frequencies. So the P-waves from big quakes carry high amplitude at lower frequencies. Smaller quakes don’t show that same level of energy or long-period content, which is why this pairing doesn’t fit as well.

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