If it's airquakes you are talking about, the calculation for the ratio is:
10 to the power (4.0 - 2.0)
30 times
Seismic energy increases by a factor of about 31.6 for each increase of magnitude, so a magnitude 3 earthquake has 31.6 times more energy released than a magnitude 2 earthquake.
The earthquake magnitude is a measure of the energy released during an earthquake. The scale is logarithmic, such that a magnitude of 6.0 releases about 32 times more energy than a magnitude 5.0 earthquake, and in turn more than 900 times more energy than a magnitude 4.0 earthquake.
Each increase by one magnitude corresponds to a release of energy 31.6 times that released by the lesser earthquake.Since 7 is 3 magnitudes higher than 4, the magnitude 4 earthquake has roughly 1/31554th the energy of the magnitude 7.Each increase by one magnitude corresponds to a release of shaking amplitude 10 times that released by the lesser earthquake.Since 7 is 3 magnitudes higher than 4, the magnitude 4 earthquake has 1/1000th the shaking amplitude of the magnitude 7.The amount of energy changes much more rapidly with magnitude than the amount of shaking amplitude. This is a commonly made error.
ten times as much for each magnitude increase; thus a magnitude 7 is 1000 times more displacement than magnitude 4
30 times
Seismic energy increases by a factor of about 31.6 for each increase of magnitude, so a magnitude 3 earthquake has 31.6 times more energy released than a magnitude 2 earthquake.
The earthquake magnitude is a measure of the energy released during an earthquake. The scale is logarithmic, such that a magnitude of 6.0 releases about 32 times more energy than a magnitude 5.0 earthquake, and in turn more than 900 times more energy than a magnitude 4.0 earthquake.
It's based on a logarithmic scale. A magnitude 7 releases 32 times more energy than a magnitude 6. Each 1.0 increase in magnitude is 32 times the energy release. An increase in 2.0 on the scale is 1000.
30 times more energy released. 10 times more ground motion*
Each increase by one magnitude corresponds to a release of energy 31.6 times that released by the lesser earthquake.Since 7 is 3 magnitudes higher than 4, the magnitude 4 earthquake has roughly 1/31554th the energy of the magnitude 7.Each increase by one magnitude corresponds to a release of shaking amplitude 10 times that released by the lesser earthquake.Since 7 is 3 magnitudes higher than 4, the magnitude 4 earthquake has 1/1000th the shaking amplitude of the magnitude 7.The amount of energy changes much more rapidly with magnitude than the amount of shaking amplitude. This is a commonly made error.
ten times as much for each magnitude increase; thus a magnitude 7 is 1000 times more displacement than magnitude 4
An earthquake with a magnitude of 5.0 has a shaking amplitude 10 times that of an earthquake with a 4.0 magnitude.
A 3.0 earthquake releases 1,000 times more energy than a 1.0 earthquake.
0.3 magnitude
0.3 magnitude
about a 1000