Amagnitude-3.0 earthquake releases just over times more energy than a 1.0 magnitude earthquake.

The difference between the two mentioned magnitudes is 4.
A magnitude 1 earth-quack is 10000 times bigger than a magnitude -3 earth-quack. On the other hand, it is 1000000 times stronger in terms of energy release.

Note: To calculate the difference in energy between two earth-quacks, first you calculate the difference between their magnitudes and then you raise 10 to the output you obtain.

Here is a picture  of the net. its 4 squares in a row diagonal and on the third draw one square aove and under

Themes; subfields is the answer