应用模式识别定量划分潜在震源区

QUANTITATIVE CLASSIFICATION OF POTENTIAL FOCAL REGIONS USING THE PATTERN RECOGNITION TECHNIQUE

本文以陕西关中及部分邻区为例,考虑地质构造、地震活动及地球物地场等因素,采用不同的模式识别方法和多种计算方案,以定量判定潜在震源区。其结果表明,模式识别方法有利于地质、地震活动及地球物理场等多种因素综合应用,并能选择和显示判定潜有震源区的主要特征。不同模式识别方法的比较和多种试验方案的综合,则可提高潜在震源区判定的可靠性和稳定性。

Citing Guanzhong region, Shaaxi Province and its neighborhood as an example, and also taking into account their geologic structures, seismic activities and geophysical field, etc., this paper quantitatively classifies the potential focal region using different pattern recognition techniques and calculation methods. Our result shows the pattern recognition technique is good for the comprehensive application involving many factors such as the geologic condition, seismicity and geophysical field. It can also be used to select, demonstrate and classify the key characteristics of the potential focal region. On the other hand, the comparison of different pattern recognition techniques and combination of dissimilar testing plans can help to enhance the reliabilily and stability in the classification of the potential focal regions.