[blam]

Ping.

[RightWhale]

Two things. Would punching a hole in the crust actually produce a volcano? It's not as if the interior of the earth is just waiting for this in order to break through.

The other thing is the Martian volcanos, which correlate with a basin on the other side of the planet and look like a large asteroid plowed right through the planet and punched almost through in the earea of the volcanos, which are grouped in a relatively small area.