Some regularities of manifestation of modern seismicity of Turkmenistan and the adjacent territory of Northern Iran
Schmidt Institute of Physics of the Earth, Russian Academy of Sciences
Journal: Problems of Engineering Seismology
Tome: 51
Number: 1
Year: 2024
Pages: 18-24
UDK: 550.34
DOI: 10.21455/VIS2024.1-2
Show citation
Burmin
G.R V.Yu. Some regularities of manifestation of modern seismicity of Turkmenistan and the adjacent territory of Northern Iran // . 2024. Т. 51. № 1. С. 18-24. DOI: 10.21455/VIS2024.1-2
@article{Burmin
G.RSome2024,
author = "Burmin
G.R, V. Yu.",
title = "Some regularities of manifestation of modern seismicity of Turkmenistan and the adjacent territory of Northern Iran",
journal = "Problems of Engineering Seismology",
year = 2024,
volume = "51",
number = "1",
pages = "18-24",
doi = "10.21455/VIS2024.1-2",
language = "English"
}
Copy link
Copy BibTex
Keywords: seismicity, earthquake recurrence graph, seasonal dependence, annual dependence
Аnnotation: Some aspects of the seismicity of Turkmenistan and the adjacent territory of Northern Iran are considered based on the ISC catalog for the period from 1964 to 2021. This period is, apparently, the most complete and, therefore, allows one to fairly correctly draw conclusions regarding some aspects of the seismicity of Turkmenistan and northeastern part of Iran. In total, the catalog for the specified period contains about 500 events with a magnitude greater than 2.5. It is shown that the frequency graph has a negative slope slightly above average, which indicates a low value of the fractal characteristics of the environment in the region of Turkmenistan – Northern Iran. Over the past 57 years, seismic activity in the region has varied from year to year. Moreover, from 1964 to 1984. seismic activity increased noticeably, and from 1985 it stabilized until 2000. From 2001 to 2004, there has been a sharp decline in seismic activity in Turkmenistan and Northern Iran, from 2005 to 2016 – a gradual increase in seismic activity in the region, and then its decline again. Finally, since 2019 there has been a noticeable increase in activity again.