Consider the following statements: 1. Richter scale is logarithmic; 1 unit = 10x amplitude. 2. Each integer has 100x energy of previous. Which of the statements given above is/are correct?
- A1 onlyCorrect
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Explanation
Statement 1 is correct because the Richter scale is a logarithmic scale. Each whole number increase on the scale represents a tenfold increase in the measured amplitude of the seismic waves.
Statement 2 is incorrect because each integer increase on the Richter scale corresponds to approximately 32 times more energy release, not 100 times. Specifically, a two unit increase on the scale represents a 1000 times increase in energy.
Therefore, only the first statement is true, making A the correct option.
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