Perhaps 'they' are planting the explosives during the eclipse, ready to set off the 'big Katla'.
That'll give 'em around 5 minutes to get into Iceland, prime their kit and vacate again. However, given how immigration control can be, 'they' probably wouldn't get pass baggage checks before everything blew up.
Or something.
In fact I'm getting bored of trying to interpret the writings of a loon, as you said it's probably down to raving-ness. So, here's a nice poem I wrote:
I'm eating a bowl o' porridge.
Chopped banana,
But no raisins.
The postman's late today.