SASSIER22: Full‐Waveform Tomography of the Eastern Indonesian Region That Includes Topography, Bathymetry, and the Fluid Ocean

Abstract

Southeast Asia is one of the most complex tectonic regions on Earth and has an extensive history of destruction and loss of life associated with earthquakes, tsunamis, and volcanoes (e.g., the 2018 Palu earthquake, Socquet et al., 2019). The eastern region is located at the confluence of three main tectonic plates, and is further complicated by a system of microplates (see Figure 1), with multiple subduction zones that were activated during the Neogene (∼23-2 Myr, Hall, 2012). This complexity is largely driven by the Southeast Asia-Australia collision zone (e.g., Hall, 2011), where subduction along the Indonesian volcanic arc transitions to an arc-continent

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