evidence: The earthquake triggered a tsunami that caused significant damages on the north coast of Samos and in Sigacik Bay where one fatality was reported (Yalciner et al. 2020), but also affected the wider coastal area of Izmir Province of Turkey (Fig. 1). This was the largest tsunami to hit the Eastern Mediterranean Sea since 1956, despite the high tsunami hazard of the region, with around three hundred historical tsunamis recorded since ancient times (Ambraseys 1962). Early field investigations allowed the collection of numerous testimonies, along with run-up and run-in field evidence (Triantafyllou et al. 2020; Aksoy 2021; Dogan et al. 2021; Kalligeris et al. 2021). The waves were also recorded by various video sources, providing strong constraints, especially temporal, for the tsunami modelling (e.g., https://www.in.gr/2020/10/30/world/seismos-thalassa-vgike-sti-steria-sti-smyrni-ormitika-nera-mesa-stin-poli/). Regrettably, there was no tide gauge data available in the near field of the earthquake. The run-up height was over one meter in several locations, and oscillations with periods of around ten minutes were observed, resulting in up to 61 run-ups with significant land flooding (https://www.ngdc.noaa.gov/hazard/tsu_db.shtml).