36 hour initial fermentation?

I have never had my initial fermentation progress this quickly before. It seems odd that the yeast has started to settle in the bottom and I can actually replace the hose with a fermentation lock after less than 48 hours. This stage gemerally takes 2-3 days. Here you can see the yeast at the bottom of my carboy, forming a layer of sediment. It will have a similar but much thinner layer in the bottom of each bottle.