Evolution of the horizontal and vertical displacements in a reference to 2010–2023 Aegean Sea earthquakes
1 RUDN University, Moscow, Russia
2 Dokuz Eylul University, Izmir, Turkey
3 Geophysical Center of the Russian Academy of Sciences, Moscow, Russia
Abstract
The animation enables synoptic analysis of the spatio-temporal evolution of accumulated "internal" horizontal and vertical displacements of GNSS stations. Activation of horizontal and vertical movements begins in the area of occurrence of a strong M6 earthquake on April 1, 2011 in the south of the region. Throughout the year, activation is concentrated in the territory of the Santorini volcanic zone. There, a slow rise increases and a more intense growth of the vector of accumulated horizontal "internal" displacements is observed. The area of uplifts extends in two directions to the north and east. At the same time, the mobility of the Santorini volcanic zone is more intense. The spread to the east covers other volcanoes of the Aegean volcanic arc. Strong earthquakes of 2017 occur on the line of transition from uplifts to subsidence. In 2020, in the mode of increasing uplifts, the strongest Samos earthquake M7 occurs. In the epicentral zone of this event, a rise of about 1 dm and a horizontal displacement vector of more than 0.5 m are formed. The horizontal displacement vectors of GNSS stations in Turkey and the islands of the Aegean Sea demonstrate the sinistral movement of the border of the Anatolian plate relative to the Aegean plate. The imaginary line between these GNSS stations marks the position of the boundary of these small tectonic plates. At the same time, the volcanic region of Santorini demonstrates its significant contribution to the observed crustal movements
Coordinate time series of GNSS station with an interval of one day were obtained from the Nevada Geodetic Laboratory website [Blewit et al., 2018].
Database creation date: 2024; Publication date: December 2024
Contributor:
Geophysical Center of the Russian Academy of Sciences, Moscow, Russia
Institution: Geophysical Center of the Russian Academy of Sciences, Moscow, Russia
Publisher: Geophysical Center of the Russian Academy of Sciences (GC RAS), Moscow, Russia (http://www.gcras.ru/eng/)
Data format: .m4v (M4V File Format)
doi: 10.2205/esdb-aegean-movement
Citation: Kaftan V. I., Melnikov A. Yu., Dokukin P. A. (2024) Evolution of the horizontal and vertical displacements in a reference to 2010-2023 Aegean Sea earthquakes, GCRAS, Moscow, https://doi.org/10.2205/esdb-aegean-movement
References:
- Blewitt, G., Hammond, W. C., Kreemer C. Harnessing the GPS data explosion for interdisciplinary science. Eos, 99 (2018) https://doi.org/10.1029/2018EO104623.
License: 
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
URL for downloading: http://esdb.wdcb.ru/doi/2024/esdb-aegean-quake-2010-2023/Evolution_of_horizontal_and_vertical_displacements_in_a_reference_to_2010-2023_Aegean_Sea_earthquakes.m4v
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