Abstract
Large premonitory changes in ratio of seismic P and S velocities correlate with time of occurrence and size of earthquakes at Blue Mountain Lake, New York. These changes may be related to the opening of cracks or to changes in pore pressure.
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AGGARWAL, Y., SYKES, L., ARMBRUSTER, J. et al. Premonitory Changes in Seismic Velocities and Prediction of Earthquakes. Nature 241, 101–104 (1973). https://doi.org/10.1038/241101a0
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DOI: https://doi.org/10.1038/241101a0
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