As someone has already stated it is now so much more than a Glasgow earthquake. Yes labour has lost it's automatic election in west-central Scotland - but the SNP are now truly a Scotland wide party. You used to mainly see the yellow shaded constituencies in the eastern Lowlands above the central belt but now they are strong virtually everywhere. Even in the four, for want of a better word, Borders constituencies, that is the three across the south plus Midlothian Tweeddale and lauderdale,then if you add the combined votes together the SNP are the most popular party. That would have been unthinkable just a few years ago. The Lib Dems may still have a hold on the northern isles but now taking the independents aside the Nats are clearly the party in second place there too.