I'll bribe/pay you.
Time dimension standard elaboration and a bit of change (whatever guess yourself)
FAQ: A: The relationship between the spatial dimensions of a universe and the additional temporal dimension(s) may be visualized as something akin to the frames of a movie placed side-by-side. Basically, the time-like direction may be thought of as a line comprised of uncountably infinite...
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I just found the volume of the crater and applied the fragmentation value to it
Regarding the second feat, this is what I came up with together with Ugarik and this method is used as an alternative to the earthquake method in cases when it does not fit the criteria of such