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Compare the Magnitudes of Earthquakes

Calculator for the comparison of two Earthquake magnitudes given in the Richter scale. The Richter scale is the most frequently used to measure earthquake magnitudes. This is a logarithmic scale, where each step has ten times the power of the previous one. An earthquake that registers 7.5 is 10 times stronger than one with 6.5. The strongest earthquake measured so far had 9.6 on the Richter scale, this was 1960 in Chile.
Please enter two values, the third will be calculated.

First value (a):
Second value (b):
Ratio a to b:

Round to   0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15   decimal places.

Example: an earthquake that registers 4 on the Richter scale makes the furnishings shake. An earthquake that registers 9 is a hundred thousand times stronger (10^9-4 = 10⁵ = 100000). With 9.6, this is almost four hundred thousand times stronger.

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