bill - 5:35 am on Jul 19, 2012 (gmt 0)
According to this tweet...
A Googler's Twitter [twitter.com]
We're launching Panda for Japanese & Korean. <5% of queries affected (no other languages affected today). Context: [goo.gl...]
Some 16 months after Panda was unleashed on the English SERPs this will now affect Japanese and Korean language SERPs.