Question: What did  seismologist Gary Gibson have to say about the prediction of the quake?
Sentence: In a press conference held by the State Council Information Office the day after the earthquake, geologist Zhang Xiaodong, deputy director of CEA's Seismic Monitoring Network Center, restated that earthquake prediction was a global issue, in the sense that no proven methods exist, and that no prediction notification was received before the earthquake.
Answer in sentence: no