A ratio of intensity expressed as a logarithm.
A measure of the energy released by an earthquake (e.g. on the Richter scale).
A number, assigned to something, such that it may be compared to others numerically
An order of magnitude.
The absolute or relative size, extent or importance of something.
Of a vector, the norm, most commonly, the two-norm.
The apparent brightness of a star, with lower magnitudes being brighter; apparent magnitude
The intensity of a force or power; potency.
The quality or degree of being strong.
The strongest part of something; that on which confidence or reliance is based.
A positive attribute.