Consider the following statements 1. The Richter scale is a logarithmic scale and consequently an increase of 1 in the magnitude unit represents a multiple of 10 for the amplitude. 2. The energy on each integer reading in the Richter scale is 100 times the energy of the preceding integer reading. Which of the above statement(s) is/are correct?

• A. only 1
• B. only 2
• C. 1 and 2
• D. neither 1 nor 2