Well the only way to disrupt life is really make earth unliving, which is easiest done by just having 'no earth'.
An earthquake magnitude 20 something (which is ridiculously high, considering the richter scale is a log scale) has more energy that the bounding energy of the earth itself. So an earthquake of that size would 'quake' violently enough that it would rip earth apart into dust.
I don't think many organisms would survive space or the forming of a new protoplanet when the dust collects again.
