Amplitude Corrections for Regional Seismic Discriminants

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Introduction | Ch. 1 | Ch. 2 | Ch. 3 | Ch. 4 | Ch. 5 | Ch. 6 | Ch. 7 | Ch. 8 | Ch. 9 | Ch. 10 | Summary

MDACOGRAM

This shows corrected amplitudes as a function of frequency for each phase. Because an earthquake model is fit to the data, the earthquake amplitudes are zero mean and normally distributed. In contrast, large residuals sometimes having large trends as a function of frequency are observed for the four Lop Nor nuclear explosions, particularly for Pn. Four Lop Nor earthquakes show different patterns than the explosions, indicating actual source differences.

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