An Analytical Review of the Recent Crustal Uplifts, Tectonics, and Seismicity of the Caucasus Region

Author:

Kaftan Vladimir I.1ORCID,Gvishiani Alexei D.12,Manevich Alexander I.13,Dzeboev Boris A.14ORCID,Tatarinov Viktor N.12ORCID,Dzeranov Boris V.14ORCID,Avdonina Alina M.1,Losev Iliya V.1

Affiliation:

1. Geophysical Center of the Russian Academy of Sciences (GC RAS), 119296 Moscow, Russia

2. Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences (IPE RAS), 119296 Moscow, Russia

3. College of Mining, National University of Science and Technology MISIS, 119049 Moscow, Russia

4. Geophysical Institute, Vladikavkaz Scientific Center RAS (GPI VSC RAS), 362002 Vladikavkaz, Russia

Abstract

This paper analyzes and reviews the rapid uplifts of the Earth’s crust in the Caucasus that occurred over the last century. The uplifts were registered by precise repeated state leveling and reflected on officially published maps of vertical movements of the Earth’s crust. This study summarizes information on the region’s vertical movements over more than a century. The present study describes the technology for creating maps of recent vertical movements of the Earth’s crust using precision leveling data. This paper summarizes cases of recording uplifts of the Earth’s surface in other regions of the world in connection with seismic activity. The authors carried out intercomparison of vertical movements with tectonics, seismicity, and geophysical fields, which discovered their apparent mutual correspondence. This indicates the deep tectonic nature of the observed uplifts of the Earth’s crust. Spatial and temporal agreement with the distribution of strong earthquakes showed a natural relationship. It has been shown that strong earthquakes are confined to the boundaries of zones of rapid uplift. They occur predominantly in areas of transition between uplifts and subsidence. The results obtained demonstrate the role of the study and observations of vertical movements of the Caucasus in assessing periods and areas of increased seismic hazard.

Funder

Russian Science Foundation

Publisher

MDPI AG

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