A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude { 5.3...

Question:

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude {eq}5.3 \times10^2 {/eq} um. Find this earthquake's magnitude. Round the answer to one decimal place.

Seismology

Seismology is the branch of science that studies the physical properties of earthquakes and seismic waves. It also includes the investigation of the effect of earthquakes in the hydrosphere, biosphere and atmosphere.

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Using the Lillie empirical formula, which is given by the following equation, we can directly calculate the earthquake's magnitude.

{eq}M=\log A +... Seismology: Definition & History

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Chapter 28 / Lesson 7
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There are only a few branches of sciences that exist primarily to prevent damage to property and loss of life. Seismology is just such a study. In this lesson, we will discuss what seismology is and dive into some of its history.