SEISMIC MONITORING IN BULGARIA AND SOME INTERCONNECTIONS
Problems of Geography, 2020, Vol.3, DOI: https://doi.org/10.35101/PRG-2020.3.7
Еmil Botev, Valentina Protopopova, Iliana Popova, Petar Stefanov
Abstract:
Expert generalized analysis of the distributions of 2557 earthquakes that occurred during 2017-2019 in Bulgaria, sector outlined by latitude j =410 –44.50 N and longitude l=220 –290 E, is presented. Analysis of the seismicity on the basis of the epicentral map of the earthquakes with magnitude M>2.0 on the territory of Bulgaria and its very adjacent lands is proposed. Some interconnections of the seismicity with the measurements of fault micro displacements and radon concentration in some Bulgarian caves are discussed. The observed microextensions and radon emissions in the caves and their connection with the seismicity are not completely enough, at the current stage of research, to talk about earthquake forecasting.
Keywords:
Bulgaria, seismicity, seismic monitoring, fault micro displacement and 222Rn concentration in caves
Acknowledgements:
This paper is supported by the Bulgarian National Science Fund projects, contracts DN 14-1/11.12.2017 and DN 14-10/20.12.2017. Studies have been conducted also thanks to the support provided by a bilateral international research agreement between the Bulgarian Academy of Sciences and the Czech Academy of Sciences: through the project “Plate-wide tectonic pressure pulses (correlation of the extensometric monitoring in Mediterranean and Central Europe)” (2017-2019).
Author information:
Author: Еmil Botev
E-mail: ebotev@geophys.bas.bg
Affiliation: National Institute of Geophysics, Geodesy and Geography – BAS, department of Geography, str. Acad. G. Bonchev, bl. 3, Sofia 1113, Bulgaria
Author: Valentina Protopopova
E-mail:
Affiliation: National Institute of Geophysics, Geodesy and Geography – BAS, department of Geography, str. Acad. G. Bonchev, bl. 3, Sofia 1113, Bulgaria
Author: Iliana Popova
E-mail:
Affiliation: National Institute of Geophysics, Geodesy and Geography – BAS, department of Geography, str. Acad. G. Bonchev, bl. 3, Sofia 1113, Bulgaria
Author: Petar Stefanov
E-mail:
Affiliation: National Institute of Geophysics, Geodesy and Geography – BAS, department of Geography, str. Acad. G. Bonchev, bl. 3, Sofia 1113, Bulgaria
How to cite:
Botev, Е., Protopopova, V., Popova, I., & Stefanov, P. (2020). Seismic monitoring in Bulgaria and some interconnections. Problems of Geography, 2020, Vol.3, p. 136-143. https://doi.org/10.35101/PRG-2020.3.7