Calculate moment magnitude Mw from seismic moment tensor. Determine scalar seismic moment M0 from fault area, slip, and rigidity; extract double-couple mechanism and stress drop.
| Constant | Symbol | Value |
|---|---|---|
| Speed of light | c | 2.99792458×10⁸ |
| Planck's constant | h | 6.62607015×10⁻³‴ |
| Boltzmann constant | kʙ | 1.380649×10⁻²³ |
| Avogadro's number | Nₐ | 6.02214076×10²³ |
| Gravitational constant | G | 6.6743×10⁻¹¹ |
| Gas constant | R | 8.31446 |
| Elementary charge | e | 1.602176634×10⁻¹⁹ |
| Electron mass | mₑ | 9.1093837015×10⁻³¹ |
| Proton mass | mₚ | 1.67262192369×10⁻²⁷ |
| Fine-structure constant | α | 7.2973525693×10⁻³ |
Calculate moment magnitude Mw from seismic moment tensor. Determine scalar seismic moment M0 from fault area, slip, and rigidity; extract double-couple mechanism and stress drop
Each component has a specific meaning:
Note: Interpret the earthquake mw calculator result against the thresholds and context described above.
Enter the seismic moment tensor for the scenario you are assessing. Calculate moment magnitude Mw from seismic moment tensor. Determine scalar seismic moment M0 from fault area, slip, and rigidity; extract double-couple mechanism and stress drop. Use the earthquake mw calculator result to inform your calculation.