Answer the following question given this paragraph: 

7. Like the Richter scale, the moment magnitude scale is logarithmic. The 2011 Tōhoku earthquake in Japan was 9.0 and did tremendous damage. A few months earlier, an 8.8 struck Chile and did much less damage. Why?.


Q: What type of scale is the richter scale?

 Choices:

- dimensional

- algorithmic

- asymmetric

- logarithmic

A:
logarithmic
