Hello guys,
Was wondering about this today. Easier to explain with a pic, see attached please.
Basically in the pic we see the hole in the terrain from a (mole) explosion, but worms slightly outside of that hole would still be hit... (Like Mulder worm standing on a girder) So there must be two different radiuses (radii?

) (the green radius is just my guess for illustration!)
Was wondering if these two have correct names (terrain, blast, damage?..) AND how big is the larger radius? Is it 125% of terrain one? 150%, 200%, different for every single weapon?..
Since there's things like rubberworm and ProjectX nowadays that have tapped into the underlying code of the game, thought to ask and see if this had already been determined by anybody. Any pointers?