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arXiv 1005.3175physics.geo-ph
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地震预测分析:M8算法

Earthquake prediction analysis: The M8 algorithm

G. Molchan, L. Romashkova

摘要:

时空地震预测的质量通常用二维误差图(n,τ)来表征,其中n是预测失败率,τ是时空报警的归一化度量。用于分析预测策略的最有趣的空间度量是子区域“dg”中的目标事件的速率m(dg)。在这种情况下,量H=1-(n+tau)决定了策略的预测能力。m(dg)的不确定性导致难以估计预测结果的“H”和统计显著性“α”。我们从理论上研究这个问题,并展示了如何在两种情况下,即,α的估计和随机策略的(n,τ)-参数的置信区的构造。我们使用我们的结果来分析8级地震预测算法。

英文摘要:

The quality of space-time earthquake prediction is usually characterized by a two-dimensional error diagram (n,tau), where 'n' is the rate of failures-to-predict and 'tau' is the normalized measure of space-time alarm. The most interesting space measure for analysis of a prediction strategy is the rate of target events m(dg) in a sub-area 'dg'. In this case the quantity H=1-(n+tau) determines the prediction capability of the strategy. The uncertainty of m(dg) causes difficulties in estimating 'H' and the statistical significance, 'alfa', of prediction results. We investigate this problem theoretically and show how the uncertainty of the measure can be taken into account in two situations, viz., the estimation of 'alfa' and the construction of a confidence zone for (n,tau)-parameters of the random strategies. We use our results to analyse the M8 earthquake prediction algorithm.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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