Fig. 1

Centroid location of each earthquake listed in Table 1. Red stars indicate earthquakes having 8.0 ≤ Mw < 8.5. Black and green stars, respectively, indicate earthquakes having 7.5 ≤ Mw < 8.0 and Mw ≥ 8.5. The numerals denote the earthquake ID# in Table 1. Thin lines in the ocean indicate plate boundaries (Bird 2003)