GNSS velocity field and earthquake catalog in Turkiye

The GNSS velocity field is a compilation of data from Kurt et al. (2023), Karakhanyan et al. (2013), and Djamour et al. (2011), comprising 835 stations. The earthquake catalog is derived from the Turkish Homogenized Earthquake Catalogue (Tan, 2021) and the Disaster and Emergency Management Authority, with declustering performed using the method of Gardner & Knopoff (1974), resulting in 195,938 seismic events. The Blocks software (Meade & Loveless, 2009) is used for block modeling and is publicly accessible at https://github.com/jploveless/Blocks.

References:

Kurt, A. İ., Özbakir, A. D., Ci̇ngöz, A., Ergi̇ntav, S., Doğan, U., & Özarpaci, S. (2023). Contemporary Velocity Field for Turkey Inferred from Combination of a Dense Network of Long Term GNSS Observations. Turkish Journal of Earth Sciences, 32(3), 275–293. https://doi.org/10.55730/1300-0985.1844

Karakhanyan, A., Vernant, P., Doerflinger, E., Avagyan, A., Philip, H., Aslanyan, R., et al. (2013). GPS constraints on continental deformation in the Armenian region and Lesser Caucasus. Tectonophysics, 592, 39–45. https://doi.org/10.1016/j.tecto.2013.02.002

Djamour, Y., Vernant, P., Nankali, H. R., & Tavakoli, F. (2011). NW Iran-eastern Turkey present-day kinematics: Results from the Iranian permanent GPS network. Earth and Planetary Science Letters, 307(1–2), 27–34. https://doi.org/10.1016/j.epsl.2011.04.029

Tan, O. (2021). A homogeneous earthquake catalogue for Turkey. Natural Hazards and Earth System Sciences, 21(7), 2059–2073. https://doi.org/10.5194/nhess-21-2059-2021

Gardner, J. K., & Knopoff, L. (1974). Is the sequence of earthquakes in Southern California, with aftershocks removed, Poissonian? Bulletin of the Seismological Society of America, 64(5), 1363–1367. https://doi.org/10.1785/BSSA0640051363

Meade, B. J., & Loveless, J. P. (2009). Block Modeling with Connected Fault-Network Geometries and a Linear Elastic Coupling Estimator in Spherical Coordinates. Bulletin of the Seismological Society of America, 99(6), 3124–3139. https://doi.org/10.1785/0120090088