So is the Kerbin Geographic Society gonna have exploration ships, patches and stuff, or are we going to just discuss things? It'd be cool to have participating members have something to put on their signature. (I can help provide these) But anyway, here are some screenshots of the islands (from kerbalmaps).
In the second one you can see underwater "islands" circled and pointed to in red, above water islands circled in yellow, all connected with yellow lines. The red line is the path of the island runway islands. BTW, do those islands have names? Like the hawaii islands, I think we need a name to refer to them all with (unless there is one). There doesn't seem to be any tectonic activity to me, maybe just extinct volcanoes, or eroded continents.