This graph is from the following Kumanichi article:

This graph is from the following Kumanichi article:

http://this.kiji.is/130849778559844358 地震回数、初のゼロ　前震から１０４日目

The graph shows the decline in quakes and the number at the various intensity levels until day 104. Day 104 is noteworthy because it is the first day since the shaking began on which no earthquake (not even a barely perceptible Level 1) was recorded.

– Kirk