Gosh! Greek defaulted IMF, Is Greece going to stay in EURO or out of EURO?
But, I found a correlation between Drachma to Bitcoin at
http://airkayu.com/content/greeks-are-rushing-bitcoinThis was not a shock...this was expected. I'm sure many people knew Greece would default. It's not something that happens so quickly like "tomorrow" as you suggest. The less ignorant people prepared for what was to come and managed to secure their finances (partially).
Yeah, sounds like the people of Greece aren't worried about the unknown or taking the riskier of two paths. It's crazy but kind of admirable to just go for it like that, to take on their own problems by themself.
Here's an article about it:
http://money.cnn.com/2015/07/06/news/economy/greece-no-vote-explanations/index.html?iid=hp-stack-dom