Actually, from what I saw on TV, it's the closest one that went. It already has a lean to when you took this shot. It's just a "tooth stubb" in the water now. There were two pictures taken by a tourist on the occasion -- one immediately before and one immediately after.
Plus, the 12 Apostles was a bit of a misnomer -- there are only eight left now.
This follows the collapse of "London Bridge" (I think that was its nickname) getting on around eight years ago.