That’s one interpretation, but my impression in comparison to the 6th Bowl Judgment is that this is definitively an act of Divine Judgment, with effect on a far grander scale than all nuclear devices being launched simultaneously, by several orders of magnitude.
Seismic activity is more severe in areas distant from bedrock. The best place to build for seismic protection is on bedrock.
Indubitably, if a worldwide series of seismic events, on the scale to move every mountain and island from their place, were to happen with little warning, those with more resources would seek shelter in the rocks and their dens within mountains. The Common sense makes perfectly good sense.
FWIW, there have been other astute interpretations of stars falling to earth, including fallen angels being thrown out of heaven, or descending to Earth, or simply a worldwide observable meteor shower.
Think in terms of the Rocky mountains being formed, or the Grand Tetons being formed in an afternoon. Far more power and energy released than a large number of thermonuclear devices being launched.
The 6th seal has nothing to do with the bowl judgments.
The bowls are after the resurrection, when God’s wrath is poured out on those that worshiped the beast.
The seals 1-6 are when God’s elect are still on Earth and everything is supposedly ‘normal.’ The 7th seal introduces modern warfare directed at Jerusalem.
I see now that you are holding out for a ‘brown dwarf’ star to fall to Earth.
Science fiction and the Bible are incompatible.