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On rapid multidisciplinary response aspects for Samos 2020 M7.0 earthquake

Foumelis Michael, Papazachos Costas, Papadimitriou Eleftheria, Karakostas Vasileios, Ampatzidis Dimitrios, Moschopoulos Giorgos, Kostoglou Anastasios, Ilieva Maya, Minos-Minopoulos Despina, Mouratidis Antonios, Kkallas Charalambos, Chatzipetros Alexandros

Acta Geophysica

2021

Vol. 69, no. 3

1025--1048

Following the M7.0 earthquake that struck the Greek island of Samos and Turkey’s western coast, causing extensive damage and casualties, we combined existing knowledge geodatabases concerning historical seismicity and rupture zones with seismological and geodetic measurements as well as with modelling and in situ observations, to provide an assessment of rapid response to the seismic event. In this paper, we demonstrate that in the frame of the gradual provision of information from the individual scientifc disciplines, taking into account their respective potential and limitations, a multidisciplinary approach is able to address more efciently rapid response issues in order to allow efective preliminary interpretation of the earthquake activity, even within the frst 24 h of the event. It focuses on the assessment of the timely provision of information by each discipline, evaluating the access to primary data sources as well as the maturity of the techniques in terms of accuracy and rapid data processing. Within a period of less than a week, several constraints were partially compensated for, allowing the delivery of more robust results and interpretation. The study highlights the readiness level of the various domains that has been signifcantly improved over the past years, including rapid seismological solutions, systematic availability of free and open Earth Observation data and on-demand online processing through dedicated platforms. Their combination with routinely applied inversion modelling and timely in situ observation is leading to improved operational response levels.