Earthquake Magnitude & Energy Calculator
Energy released by an earthquake from its moment magnitude, TNT equivalent and comparison between magnitudes.
How to use the Earthquake Magnitude & Energy Calculator
- Enter or select: Moment magnitude Mw.
- Fill in what you know of: Compare with magnitude β leave the unknown empty.
- The results (Energy, TNT equivalent, Seismic moment Mβ, Energy ratio vs. comparison, Amplitude ratio vs. comparison, Class) are calculated instantly as you type.
- Use βCopy linkβ to share the calculation with the same input values.
Formula
- logββE = 1.5M + 4.8 (J)
- Mβ = 10^(1.5Mw + 9.1) NΒ·m