Those are not the "craters", they are what remains of the single original crater after filling in by the tractors in that photo. Note the date on that photo you refer to, IIRC, it is 4/27, five days after the explosion. Please see post #152 for an earlier photo. Filling of the crater by tractors began by the second day.
• "I do not see any reason to believe any excavation rather than filling has occurred.
The filling is the excavation referred to.
• "a saddle between, that has already been filled."
The saddle is the fill and not an artifact from the explosion. Again, see #152.
• "As for "debris", it'd be scattered over 10 square kilometers."
And so were the pictures the Red Cross and the U.N. Humanitarian relief workers took. They were on scene from almost day one. Guess what? None show any evidence of bomb fragments or missile engine/body debris. Not even North Korean security officers are that efficient at removing that much debris.
Given the amount of damage done and the distance over which it occurred, the quantity of explosive involved had to have been in the 10-20 ton range. Even when you fudge that number for the actual type explosive material involved, that is still way too much damage to have come from your typical ammonium perchlorate/aluminum powder (or anything similar) solid rocket propellant. Notice the railway cars that "survived" the explosion. You are not going to put either large or a high quantity of missiles in those cars. Just not enough room. Moreover, solid fuel rocket propellant is just not anywhere brissive enough to account for some of the damage seen in the published photos.
Your posts presume that the explosion occurred on the train. Why? There is no direct evidence of that. If you haven't already done so, please refer to post #106 and you will find where the explosion actually occurred.
--Boot Hill