Magnitude is related to the amount of seismic energy released at the hypocenter of the earthquake. It is based on the amplitude of the earthquake waves recorded on instruments which have a common calibration. The magnitude of an earthquake is thus represented by a single, instrumentally determined value.
<span>1. main sequence 2. red giant branch star 3. helium flash 4. horizontal branch star 5. asympiotic giant branch star 6. planetary nebula ejection 7. white dwarf</span>
