Having been tinkering with the concept myself, I can tell you that it's quite viable and can catch most Tier 1 decks REALLY off guard. More specific card suggestions in just a second.
And in response to Kammikaze's post, playing against control, generally speaking, is unfun - this is just another type of control... so, y'know. If the opponent wants to be a dick and play net-decked U/W/x control, well, then I find it hard to feel bad for them when you blow up all their lands.
So about the deck. You're on the right path, but you're leaving out some of the best pieces. The real power here is that you can ramp into the four-costed land hate much faster than the opponent can get meaningful stuff out. But you have some issues.
1) Anger of the Gods might be helpful against aggro decks, but it will kill ALL your mana dorks. This is hardly ideal as the deck really needs them to get you to land destruction range as quickly as possible. Once you've locked them down to 1-2 lands, really they aren't much of a threat so it's okay to give up a few life here or there to get to that point.
2) Survey the Wreckage and Structural Collapse are just BAD. You want CHEAPER land hate. This comes nicely in the form of Bramblecrush and Desecration Plague - both of which fall in at the four-spot AND both provide some added versatility in the event they get things out. Both of these should be swapped for the two you have in the list. Frenzied Tilling is workable because it helps get your more land in addition to blowing on of theirs up.
3) Sylvan Primordial is an absolute house and one that you will be able to cast quite frequently with all your mana dorks and whatnot. He blows up a land, gets you a land, and then sticks around as a 6/8 beat stick to actually kill the opponent (after all, we are trying to kill them, not just piss them off).
4) Nessian Demolok is an option (although I'm not sure it's ideal). The tribute side will lead to some serious variability in their play; however, worst case scenario it comes in as a 6/6, which can then be your path to victory. Just keep in mind, it HAS to destroy something if they don't pay the tribute, so if they don't have any land this can then result in you having to blow up one of your non-creature permanents.
5) Xenagos, the Reveler really belongs in here in some number and I would even suggest Courser of Kruphix as you need to help with your ramp AND generate as much card advantage as possible given that these colors typically don't really replenish your hand as well as one might like.
6) For the SB, don't forget Peak Eruption it's cheaper AND pings the opponent... always a plus.
Having said all of that, my personal preference is for the deck to be RUG. The reason for the blue splash is mostly for card draw but also for Cyclonic Rift which, when overloaded, is a pretty solid way to hose the opponent who only has 1-2 lands in play. Toss in fun things like Aetherize (in the SB) and Jace, Architect of Thought in the main and now you're blowing up lands, generating card advantage, and generally just getting the job done. This color grouping also gives you access to Keranos, God of Storms - another not too shabby card advantage engine + win con, Kiora's Follower - a better Voyaging Satyr, Kiora, the Crashing Wave, Ral Zarek, Whelming Wave, and the list goes on...
I haven't found the post JOU sweet spot for this list just yet, but I have been tinkering with it... I'll link you to a list if/when I figure out an ideal build as it currently FLOODS the four drop rather absurdly, but when it works, man is it fun (at least on your side of the table).