BTC:RUR volume on BTC-e has "exploded" from ~200 BTC/day to ~800 BTC/day over the last 2-3 days. That is ~260'000 USD/day. Wow. In another few days those millions of desperate Russians will be able to buy a modest house in the Bay Area and relocate there.
Seriously, volume has been up in all exchanges, as it usually does when the price changes fast (up or down).