目前为止，因为数据的不足，地震预报是备受争议的。基本上没有证据或者被证实的实际理论可以将可观察的现象和随后的地震关联起来。
Thus far, earthquake prediction is controversial because data are sparse and there is little evidence or verified physical theory to link observable phenomena to subsequent seismicity.
在中国，孕震空区已经比较广泛地应用于地震预报的实践，并多次取得实际预测强震的效果。
The preparation gap method has been extensively applied to earthquake prediction practice in China and some strong earthquakes are successfully forecasted with help of this method.
将改进后的程序应用于1993年和1996年华南地区地壳的面波品质因子——Q值的实际反演，为中长期地震预报和地震趋势分析提供背景资料。
The inversion result, the distribution of Surface waves Q value for South China in 1993 and 1996 will offer some background information about medium - long term earthquake prediction.
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