Question

The magnitude of an earthquake, r, can be measured by the equation mc030-1. Jpg, where a is the amplitude in micrometers, t is measured in seconds, and d accounts for the weakening of the earthquake due to the distance from the epicenter. If an earthquake occurred for 4 seconds and d = 2, which graph would model the correct amount on the richter scale?.

Answer 1

A graph that can be used to model the correct amount on the Richter scale is given by $r = log (\frac{a}{4}) +2$

Given the following data:

• Time = 4 seconds.

• Distance = 2 meters.

How to calculate the magnitude of an earthquake.

Mathematically, the magnitude of an earthquake is measured by using this equation:

$r = log (\frac{a}{t}) +d$

Where:

• r is the magnitude of an earthquake.

• a is the amplitude in micrometers.

• t is the time measured in seconds.

• d is the distance from the epicenter.

Note: The distance from the epicenter accounts for the weakening of an earthquake.

Substituting the given parameters into the formula, we have;

$r = log (\frac{a}{4}) +2$

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Answer 2

Answer:

It's the second graph (B)

Explanation: