QuestionMay 5, 2026

(12.2) Uses fault size and distance that fault blocks move to measure magnitude a moment magnitude b seismograph c Richter scale d modified Mercalli scale

(12.2) Uses fault size and distance that fault blocks move to measure magnitude a moment magnitude b seismograph c Richter scale d modified Mercalli scale
(12.2) Uses fault size and distance that fault blocks move to measure magnitude
a moment magnitude
b seismograph
c Richter scale
d modified Mercalli scale

Solution
4.0(237 votes)

Answer

a moment magnitude Explanation 1. Identify the concept The description refers to measuring earthquake magnitude using fault size and displacement, which matches the **moment magnitude** method. 2. Eliminate incorrect options Seismograph measures motion, Richter scale is based on seismic wave amplitude, and Mercalli scale measures intensity, not magnitude.

Explanation

1. Identify the concept<br /> The description refers to measuring earthquake magnitude using fault size and displacement, which matches the **moment magnitude** method.<br />2. Eliminate incorrect options<br /> Seismograph measures motion, Richter scale is based on seismic wave amplitude, and Mercalli scale measures intensity, not magnitude.
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