I never really thought about whether an iceberg flips over or not. But they do. It’s actually something that happens pretty regularly but is rarely captured on camera.
The above footage from 2012 shows the iceberg flipping as a catamaran full of sightseers pass closely (almost too close) by.
Scientists calculate that the energy released as larger icebergs flips is as much as an atomic bomb. Keep in mind that some icebergs are the size of major cities. It is more common for the icebergs to flip shortly after being release from a glacier due to their irregular shape and gravity working to bring the heaviest portion below the sea surface.[youtube https://www.youtube.com/watch?v=tt6digvuLsk&w=700]
And here’s another short clip from New Zealand.[youtube https://www.youtube.com/watch?v=D187F9ktzc0&w=700]