“…The western Greater Caucasus accommodates 4 mm/yr convergence (Reilinger et al., 2006; Sokhadze et al., 2018), is characterized structurally by coherent macro‐scale thrust sheets of 2–10 km thickness (Trexler et al., 2022), and has earthquake depths of <20 km (Mumladze et al., 2015). In contrast, the eastern Greater Caucasus is accommodating convergence rates of 10–12 mm/yr (Figure 2a; Kadirov et al., 2012, 2015; Reilinger et al., 2006) and earthquake depths of up to >100 km have been recorded north of the range (Burmin et al., 2019; Gunnels et al., 2021; Mellors et al., 2012; Mumladze et al., 2015). Recent tomographic results indicate that the Kura foreland basin, which is being underthrust beneath the eastern Greater Caucasus, is floored by thin (<20 km thick), mafic crust (Figure 2b; Gunnels et al., 2021).…”