The first Hydrogen (Fusion) bomb was approx 10.4 Megatons.
It left a crater a mile wide..
The biggest H-bomb ever tested by the U.S. was 15 Megatons.
It left a crater 250 ft. deep and 6250 ft wide..
What's the size of the Yucatan Crater?
I would guess about 10 miles wide, and somewhere around 2000 to 2200 ft deep..
i.e., 100 megatons..
The Russians had designs for 100 megaton H-bombs, but never actually tested any.. ( not sure if they ever built one or not )
The Yucatan crater is estimated to be 110 - 125 miles in diameter. I don't know if there is any reliable estimate of depth.
The largest they detonated was 50 MT.