There seems to be few news reporting survivors, death number continues to be growing.
although the CGS(China Geological Survey)explained that the quake is not easy to predict, but rumors pointed out that from local news, there seems to be some sign of the quake a few days before.
First
on May 5th, one of a pond in nearby Provence of Hubei, suddenly lost its store of 80,000 tons.
the pond dried up,with only silt left
Second
On May 8th, news say that thousand frogs moved out onto the ground in Mianzhu City, which is most likely to be the sign of the quake,see this video below
http://news.qq.com/a/20080513/005365.htm