I believe it was mostly because of sudden interest from people in China but also with exchange(s) manipulating markets. At the same time there were lil' bit of hype, lil' bit of new partners and all new fresh wave of people that took the step from being speculator jumping in shoes of bitcoin owner.
well what drove the chinese interest in bitcoin?
Poor people wanted freedom (they don't have minimum wages so they really really don't get paid well.. some of them bought some btc in hope that it will raise)
Then there's also the people that have some money (there are also jobs that pay well.. and someone also owns those factories where the "slaves" work for almost free)
Some farmers managed to fulfill their dreams with bitcoin.
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I believe that we will get Chinawave part 2 and also i think that we could get Russiawave, Indiawave and massadaption in western countries (US&Europe).
Also there are many new spectators.. many of those are sceptic but when someone they appreciate says something good about bitcoin, they will join in btc-community..
If the far East wants to sit on the sidelines of the peaceful revolution they do so at their own peril. It took them long enough to even get within sight of the industrialized economies. To take a step back now would be senseless and tragic for their people.