How fast would we have to orbit if Jupiter were that close?
EDIT: Is Io closer to Jupiter than the moon is to Earth (I believe I answered this myself, I think the we would be closer in this picture by ~100,000km)? What would be the tidal effects of the depicted picture? Would we be tidally locked? I assume volcanic activity and earthquakes would at least increase and I imagine be catastrophic (if it would hypothetically replace the moon with all orbital mechanics updated to sustain a stable orbit).