These projectiles are much stronger than whatever hit Volnovaha was.
350 km is ballistic missile range. Do I need to show you how a ballistic missile explosion looks like?
Nope, there are MLRS systems capable of firing a wide range of munitions some of which come with a range of 300 to 350 km even. Naturally, those dont carry a lot of explosive content with them.
Okay, I googled and:
http://www.military-today.com/artillery/ws2.htm
"Maximum range of fire is 200 km, however some sources claim that it might be up to 350 km. Minimum range is 70 km."
These very-long-range systems have a really big minimum range.
Also, "Warhead weight 200 kg" is not "a lot of explosive content" for you?
Here's 200 kg of explosives in action: http://www.youtube.com/watch?v=F45ka7FXrjA
For information, a GRAD warhead (which can seriously damage a tank if it hits it directly) is only 20 kg in weight.
Are you finding "errors" in what people say for just the sake of it? I did not refer to any specific system. That one does have munitions that carry a lot of explosives to range, but that is not typical. My comment was relevant to the "could it have been grad or not" question(yes it could have been, or some other rocket system). Those explosions most certainly arent from ballistic missiles of any kind(referring to your comment). They'd possibly leave larger marks if they just fell down without exploding.
Grad has several different kinds of munitions, there is not one single "grad warhead". The explosions in the video don't look like 20 kg of TNT. (That is entirely subjective, referring to personal first hand experience in observing explosions of different sizes and kinds going off in dirt, sand, snow at various depths)
Maybe they are 20 kg a piece, we dont know how deep they exploded as theres always a slight delay. Depends on the exact warhead and possible detonation setting. But that kind of thinking is not something you want to apply everywhere and everything as we could just question and deny everything and then make up our own facts that have little to nothing to do with reality and just blur the scene with blatant lies like official Russia and Ukraine already do.