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Premonitory Variations in <i>S</i> -Wave Velocity Anisotropy before Earthquakes in Nevada

SciencePublished 14 December 1973
Indra N. Gupta
Citations67
SJR quartileQ1
SJR score10.42
SNIP6.62

TL;DR

Large premonitory changes in the extent of S-wave splitting have been observed for two earthquakes in Nevada, and observations of the difference between the two S- wave velocities may provide a simple method for pedicting earthquakes.

Abstract

Application of nonhydrostatic stress to rock induces velocity anisotropy, causing the S wave to split into two components traveling with somewhat different velocities. Large premonitory changes in the extent of S-wave splitting have been observed for two earthquakes in Nevada. Observations of the difference between the two S-wave velocities may provide a simple method for pedicting earthquakes.

Keywords

Earth and Planetary Sciences