Fig. 4From: Temporary slip speed increases during short-term slow slip events with durations of one to three hoursRelationship between \(Z=\frac{X-np}{\sqrt{np(1-p)}}\) and CC\(_{\textrm{sr}}\) at peaks (Fig. 2b), where X is number of positive peaks with CC\(_{\textrm{sr}}\) greater than that shown on the horizontal axis, n the total number of peaks and troughs with CC\(_{\textrm{sr}}\) greater than that shown on the horizontal axis, and p assumed ratio of positive peaks (\(=0.5\)). The gray horizontal line denotes the threshold (\(Z>1.96\)) for 5% rejectionBack to article page