Published

2019-07-01

The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area

La tomografía de terremoto local del área geotérmica de Erzurum (Turquía)

DOI:

https://doi.org/10.15446/esrj.v23n3.74921

Keywords:

Local earthquake tomography, seismic velocity model, geothermal, Erzurum (en)
Tomografía sísmica local, modelo de velocidad, geotérmica, Erzurum, (es)

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Erzurum and its surroundings are one of the seismically active and hydrothermal areas in the Eastern part of Turkey. This study is the first approach to characterize the crust by seismic features by using the local earthquake tomography method. The earthquake source location and the three dimensional seismic velocity structures are solved simultaneously by an iterative tomographic algorithm, LOTOS-12. Data from a combined permanent network comprising comprises of 59 seismometers which was installed by Ataturk University-Earthquake Research Center and Earthquake Department of the Disaster and Emergency Management Authority  to monitor the seismic activity in the Eastern Anatolia, In this paper, three-dimensional Vp and Vp/Vs characteristics of Erzurum geothermal area were investigated down to 30 km by using 1685 well-located earthquakes with 29.894 arrival times, consisting of 17.298 P- wave and 12.596 S- wave arrivals. We develop new high-resolution depth-cross sections through Erzurum and its surroundings to provide the subsurface geological structure of seismogenic layers and geothermal areas. We applied various size horizontal and vertical checkerboard resolution tests to determine the quality of our inversion process. The basin models are traceable down to 3 km depth, in terms of P-wave velocity models. The higher P-wave velocity areas in surface layers are related to the metamorphic and magmatic compact materials. We report that the low Vp and high Vp/Vs values are observed in Yedisu, Kaynarpinar, Askale, Cimenozu, Kaplica, Ovacik, Yigitler, E part of Icmeler, Koprukoy, Uzunahmet, Budakli, Soylemez, Koprukoy, Gunduzu, Karayazi, Icmesu, E part of Horasan and Kaynak regions indicated geothermal reservoir.
Erzurum y sus alrededores son unas de las áreas más sísmicamente activas en la parte oriental de Turquía, también conocida por su actividad hidrotermal. Este estudio es el primer acercamiento a caracterizar la corteza utilizando la tomografía de terremoto local. La ubicación de la fuente del terremoto y las estructuras de velocidad tridimensional se resolvieron simultáneamente mediante un algoritmo tomográfico iterativo, LOTOS-12. Los datos de redes permanentes que consisten en 59 sismómetros, que fueron instalados por la Universidad y Centro de Investigación de Terremotos Ataturk, y el Departamento de Terremotos de la Autoridad de Manejo de Desastres y Emergencias, se utilizan para monitorear la actividad sísmica en el este de Anatolia. En este artículo, se investigaron las características tridimensionales de Vp y Vp/Vs del área geotérmica de Erzurum hasta 30 km de profundidad utilizando 1685 terremotos bien ubicados con 29,894 tiempos de llegada, que consisten en 17,298 ondas P y 12,596 llegadas de ondas S. Desarrollamos nuevas secciones transversales de profundidad de alta resolución a través de Erzurum y sus alrededores para proporcionar la estructura geológica subsuperficial de las capas sismógenas y las áreas geotérmicas. Aplicamos varias pruebas de resolución de tablero de ajedrez horizontal y vertical para determinar la calidad de nuestro proceso de inversión. Los modelos de cuenca se pueden rastrear hasta 3 km de profundidad, en términos de modelos de velocidad de onda P. Las áreas de mayor velocidad de la onda P en las capas superficiales están relacionadas con los materiales compactos metamórficos y magmáticos. Informamos que los valores de Vp baja y Vp/Vs alta se observaron en Yedisu, Kaynarpinar, Askale, Cimenozu, Kaplica, Ovacik, Yigitler, E parte de Icmeler, Koprukoy, Uzunahmet, Budakli, Soylemez, Koprukoy, Gunduzu, Karayazi, Icmesu y parte de las regiones de Horasan y Kaynak. Como resultado importante, estas regiones indican depósitos geotérmicos.

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APA

Ozer, C. and Ozyazicioglu, M. (2019). The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area. Earth Sciences Research Journal, 23(3), 209–223. https://doi.org/10.15446/esrj.v23n3.74921

ACM

[1]
Ozer, C. and Ozyazicioglu, M. 2019. The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area. Earth Sciences Research Journal. 23, 3 (Jul. 2019), 209–223. DOI:https://doi.org/10.15446/esrj.v23n3.74921.

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Ozer, C.; Ozyazicioglu, M. The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area. Earth sci. res. j. 2019, 23, 209-223.

ABNT

OZER, C.; OZYAZICIOGLU, M. The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area. Earth Sciences Research Journal, [S. l.], v. 23, n. 3, p. 209–223, 2019. DOI: 10.15446/esrj.v23n3.74921. Disponível em: https://revistas.unal.edu.co/index.php/esrj/article/view/74921. Acesso em: 2 nov. 2024.

Chicago

Ozer, Caglar, and Mehmet Ozyazicioglu. 2019. “The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area”. Earth Sciences Research Journal 23 (3):209-23. https://doi.org/10.15446/esrj.v23n3.74921.

Harvard

Ozer, C. and Ozyazicioglu, M. (2019) “The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area”, Earth Sciences Research Journal, 23(3), pp. 209–223. doi: 10.15446/esrj.v23n3.74921.

IEEE

[1]
C. Ozer and M. Ozyazicioglu, “The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area”, Earth sci. res. j., vol. 23, no. 3, pp. 209–223, Jul. 2019.

MLA

Ozer, C., and M. Ozyazicioglu. “The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area”. Earth Sciences Research Journal, vol. 23, no. 3, July 2019, pp. 209-23, doi:10.15446/esrj.v23n3.74921.

Turabian

Ozer, Caglar, and Mehmet Ozyazicioglu. “The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area”. Earth Sciences Research Journal 23, no. 3 (July 1, 2019): 209–223. Accessed November 2, 2024. https://revistas.unal.edu.co/index.php/esrj/article/view/74921.

Vancouver

1.
Ozer C, Ozyazicioglu M. The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area. Earth sci. res. j. [Internet]. 2019 Jul. 1 [cited 2024 Nov. 2];23(3):209-23. Available from: https://revistas.unal.edu.co/index.php/esrj/article/view/74921

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