Hypersonic: explosion range when booms are on same position?

Since it is allowed that two or more players to be on the same position, it is possible that they both booms on the same position.

What is the behavior of explosion for the following cases?

  1. two (or more) booms on same position, one reach 0, and other don’t
  2. two (or more) booms on same position, more than 1 reach 0

Would the explosion for all booms have a range of 3? or
all booms would be blocked by each others?

When the first bomb reaches 0, they all explode.
Each explodes with their own range. So a bomb with larger range might break more boxes.