Gamma Ray and Radon Anomalies in Northern Taiwan as a Possible Preearthquake Indicator around the Plate Boundary

Figure 7

Variation diagrams showing the relationship between earthquake magnitude and (a) epicenter distance to the YMSG monitoring site and (b) distribution of the precursory time. Fitted curves are shown as solid lines. Dashed lines indicate the 95% confidence interval of the data set.

(a)

(b)