Where on earth do you see this?
I'm seeing 180k BTC volume on huobi in the past 24h here: http://bitcoinity.org/markets/list?currency=ALL&span=24h
I'm seeing 180k BTC volume on huobi in the past 24h here: http://bitcoinity.org/markets/list?currency=ALL&span=24h
Look at 2 days ago OP. It's not unprecedented by any means.