No. The Richter scale (by which earthquakes are measured) calculates the amount of energy exerted from an earthquake by taking into account amplitude and several other variables.
It can be found on wikipedia at
http:/en.wikipedia.org/wiki/Richter_magnitude_scale
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The Richter and Moment Magnitude scale are both logarithmic scales so that a scale 1 earthquake would be 10 times weaker than a scale 2 earthquake and 100 times weaker than a scale 3 earthquake, so mathmatically I would say that it increases by a tenth of a scale 7 earthquake.
The energy released by an earthquake increases by 10x for every 1.0 increase in magnitude on the Richter scale. A 6.2 quake is 2.0 higher than a 4.2 quake. The increase in energy output would be calculated as such: 10x10=100. A 6.2 magnitude earthquake is 100 times more powerful than a 4.2 magnitude earthquake.
The Richter Scale
The strength of an earthquake increases exponentially as you go up the Richter scale. For each whole number increase on the Richter scale, the amplitude of ground motion and energy release increases by about tenfold. So, a magnitude 6 earthquake is 10 times stronger than a magnitude 5 earthquake, and a magnitude 7 earthquake is 100 times stronger than a magnitude 5 earthquake.
Earthquakes are typically measured on the Richter scale or the moment magnitude scale, which quantify the energy released by an earthquake. The higher the number on either scale, the stronger the earthquake's intensity.
Because of the Richter Scale's logarithmic properties, a number 5 earthquake is 100 times more severe than a number 3 earthquake.
The Haiti earthquake was measued at a magnitude of seven on the ricter scale.
The change in magnitude is (6.2 - 4.2) 2.0. This is equivalent to a 100 times increase in seismic wave amplitude (as each increase of 1 on the scale is a 10 times increase in amplitude therefore 10 * 10 = 100)..
The seismic scale that measures the intensity of earthquake damage is called the Mercalli intensity scale. This scale measures the effect an earthquake has on people and surroundings.
The magnitude of the 2010 Haiti earthquake on the Richter scale was 7.0
No. The Richter's scale measures the magnitude or intensity of an earthquake on a scale up to ten.
The 2011 earthquake was a 5.8 magnitude on the Richter scale.