James W. Dewey’s scientific contributions

... Like other mega-earthquakes in Latin America, cores of turbidites obtained from the Colombian coast suggest that one or two similar mega-earthquakes occurred in the last 600 years (Migeon et al. 2017). After this event, a sequence of earthquakes occurred in the years 1942, Mw 7.8 (Figure 1b (Kanamori & McNally 1982, Mendoza & Dewey 1984, Sennson & Beck 1996; recently, the 2016 Mw 7.8 Pedernales earthquake (Figure 1b, #12) took place in the same area as the 1942 event (Figure 1b, #14) (Ye et al. 2016, Nocquet et al. 2017. These events show a complex sequence of ruptures that partially overlap each other, demonstrating the heterogeneity of the megathrust and the variability of ruptures along the dip (Kanamori & McNally 1982, Ye et al. 2016, Nocquet et al. 2017, Yoshimoto et al. 2017. ...

Reference:

Fast and Slow Subduction Earthquakes in Latin America