Sixty percent of magnitude 5.5 and larger earthquakes in the western Cordillera were preceded by foreshocks (Doser, 1989). Foreshocks also preceded the 2008 Wells (Mw 6.0; Smith et al., 2011) and the 2008 Mogul (Mw 5.0; Smith et al., 2008; dePolo, 2011) earthquakes in Nevada. Understanding foreshocks and their behavior is important because of their potential use for earthquake forecasting and foreshocks felt by communities act as a natural alarm that can motivate people to engage in seismic mitigation. A majority of larger earthquakes in Nevada had foreshocks, and...

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