Answer
See the picture.
Work Step by Step
Total: $22+22+3201+3332+7276+1430+130+18+1=15432$ earthquakes.
The cumulative relative frequency for "0 - 0.9" is $\frac{22}{15432}\approx0.0014$
The cumulative relative frequency for "1.0 - 1.9" is $\frac{44}{15432}\approx0.0029$
The cumulative relative frequency for "2.0 - 2.9" is $\frac{3245}{15432}\approx0.2103$
The cumulative relative frequency for "3.0 - 3.9" is $\frac{6577}{15432}\approx0.4262$
The cumulative relative frequency for "4.0 - 4.9" is $\frac{13853}{15432}\approx0.8977$
The cumulative relative frequency for "5.0 - 5.9" is $\frac{15283}{15432}\approx0.9903$
The cumulative relative frequency for "6.0 - 6.9" is $\frac{15413}{15432}\approx0.9988$
The cumulative relative frequency for "7.0 - 7.9" is $\frac{15431}{15432}\approx0.9999$
The cumulative relative frequency for "8.0 - 8.9" is $\frac{15432}{15432}=1$
