I was watching a show the other day called How The Earth Was Made and it was talking about Krakatoa and how when it erupted in 1883 that it was so massive it imploded on itself only leaving a small portion still visible above sea level. (As a side note: the eruption of Krakatoa is the loudest sound ever recorded) In December 1928 the volcano (then undersea) erupted in the same way as the volacano above. I tried finding the video online, but to no avail (seriously cool!). Since 1928, Anak Krakatau (Baby Krakatoa), has risen to almost 500ft. That's an average of 6 inches a year!! That is just amazing to me.
Anyway, just thought I'd share this random bit of news with you.
Memo to me: I need to call my friend to see if she's heard anything from her family in Tonga.