Presumably, that is above the Curie point for magnetic recording media.
Now I'm wondering if some of the floppies whose cases curled/warped during our house fire might not still be readable...
Time to update the Bradbury classic!
The solder doesn’t look like it was flowing so it’s possible that the chip sheered off the board from the impact or the solder might simply have softened a little and then the impact popped it off. But if it really melted, I wouldn’t expect the remaining solder on the board to be so neat.