4 research outputs found
ΠΠΠ Π’Π Π‘ΠΠΠ‘ΠΠΠ’ΠΠΠ’ΠΠΠΠΠ ΠΠΠ‘Π’ΠΠ§ΠΠΠ Π‘ΠΠΠΠ Π
The paper reviews goals and objectives, stages and the content of seismotectonic studies conducted in Eastern Siberia. Such studies are based on a comprehensive analysis of geological and geophysical data and provide for establishing whether the local earthquakes are of tectonic origin and revealing their relationships with recent geodynamic processes in the area under study. Seismic hazard assessment and evaluation of tectonic processes are the two major, closely interrelated aspects of seismotectonic studies. The latter are generally conducted in combination with seismic studies prior to the stage of detailed seismic zonation (DSZ) which is followed by seismic micro-zonation (SMZ). In three stages of seismotectonic studies, we analyse specific geological structures, reveal the regional dynamics of seismotectonic processes, clarify details of potential seismic hazard locations and identify sites of the potential instantaneous deformation of the crust which may take place due to active faulting. Based on results of the long-term studies conducted by the authors, a seismotectonic map of Eastern Siberia is compiled. The paper briefly reviews the methods of mapping and refers to data on active faults and neotectonic structures revealed in the area under study, which are closely related to regional earthquake sources.Π ΡΡΠ°ΡΡΠ΅ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡΡΡ Π·Π°Π΄Π°ΡΠΈ, ΡΡΠ°Π΄ΠΈΠΉΠ½ΠΎΡΡΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΠΈ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ ΡΠ΅ΠΉΡΠΌΠΎΡΠ΅ΠΊΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΊΠ°ΠΊ ΠΎΡΠ΄Π΅Π»ΡΠ½ΠΎΠ³ΠΎ Π²ΠΈΠ΄Π° Π°Π½Π°Π»ΠΈΠ·Π° ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΡΡ
Π³Π΅ΠΎΠ»ΠΎΠ³ΠΎ-Π³Π΅ΠΎΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ², ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΡ
Π΄Π»Ρ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΡ ΡΠ΅ΠΊΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΡΠΈΡΠΎΠ΄Ρ ΠΏΡΠΎΡΠ²Π»Π΅Π½ΠΈΠΉ ΠΌΠ΅ΡΡΠ½ΡΡ
Π·Π΅ΠΌΠ»Π΅ΡΡΡΡΠ΅Π½ΠΈΠΉ ΠΈ ΠΈΡ
ΡΠ²ΡΠ·ΠΈ Ρ ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΡΠΌΠΈ Π³Π΅ΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΏΡΠΎΡΠ΅ΡΡΠ°ΠΌΠΈ, ΠΏΡΠΎΡΠ΅ΠΊΠ°ΡΡΠΈΠΌΠΈ Π½Π° ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΠΌΠΎΠΉ ΡΠ΅ΡΡΠΈΡΠΎΡΠΈΠΈ. Π Π·Π°Π΄Π°ΡΠΈ ΡΠ΅ΠΉΡΠΌΠΎΡΠ΅ΠΊΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π²Ρ
ΠΎΠ΄ΡΡ Π΄Π²Π° ΡΠ΅ΡΠ½ΠΎ Π²Π·Π°ΠΈΠΌΠΎΡΠ²ΡΠ·Π°Π½Π½ΡΡ
Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ: ΠΎΡΠ΅Π½ΠΊΠ° ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ ΡΠ΅ΠΉΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ²Π»Π΅Π½ΠΈΠΉ ΠΈ ΠΎΡΠ΅Π½ΠΊΠ°Β ΡΠ΅ΠΊΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ². Π‘Π΅ΠΉΡΠΌΠΎΡΠ΅ΠΊΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ, ΡΠΎΠ²ΠΌΠ΅ΡΡΠ½ΠΎ Ρ ΡΠ΅ΠΉΡΠΌΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ, Π²ΡΠ΅Π³Π΄Π° ΠΏΡΠ΅Π΄Π²Π°ΡΡΡΡ ΡΡΠ°Π΄ΠΈΡ Π΄Π΅ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠ΅ΠΉΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°ΠΉΠΎΠ½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ (ΠΠ‘Π ) ΠΈ Π² ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠ΅ΠΌ β ΡΠ΅ΠΉΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΌΠΈΠΊΡΠΎΡΠ°ΠΉΠΎΠ½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ (Π‘ΠΠ ). Π‘Π°ΠΌΠΈ ΡΠ΅ΠΉΡΠΌΠΎΡΠ΅ΠΊΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΠ²ΠΎΠ΄ΡΡΡΡ Π² ΡΡΠΈ ΡΡΠ°ΠΏΠ° ΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡ Π½Π° ΡΠ΅Π³ΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠΌ ΡΡΠΎΠ²Π½Π΅ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠ½ΡΡ
Π³Π΅ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΡΡΠΊΡΡΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΠΈΡΡ Π³Π΅ΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΠΊΡ ΡΠ΅ΠΉΡΠΌΠΎΡΠ΅ΠΊΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ², ΠΏΡΠΎΠ²Π΅ΡΡΠΈ Π΄Π΅ΡΠ°Π»ΡΠ½ΡΡ Π»ΠΎΠΊΠ°Π»ΠΈΠ·Π°ΡΠΈΡ ΡΠ΅ΠΉΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ ΠΈ Π²ΡΡΠ²ΠΈΡΡ ΠΌΠ΅ΡΡΠ° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ²Π»Π΅Π½ΠΈΡ ΠΌΠ³Π½ΠΎΠ²Π΅Π½Π½ΡΡ
Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΉ Π·Π΅ΠΌΠ½ΠΎΠΉ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ, ΡΠ²ΡΠ·Π°Π½Π½ΡΡ
Ρ Π°ΠΊΡΠΈΠ²Π½ΡΠΌΠΈ ΡΠ°Π·Π»ΠΎΠΌΠ°ΠΌΠΈ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΌΠ½ΠΎΠ³ΠΎΠ»Π΅ΡΠ½ΠΈΡ
Π°Π²ΡΠΎΡΡΠΊΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΎΠ±ΠΎΠ±ΡΠ΅Π½Ρ Π² ΠΊΠ°ΡΡΠ΅ ΡΠ΅ΠΉΡΠΌΠΎΡΠ΅ΠΊΡΠΎΠ½ΠΈΠΊΠΈ ΠΠΎΡΡΠΎΡΠ½ΠΎΠΉ Π‘ΠΈΠ±ΠΈΡΠΈ, Π΄Π»Ρ ΠΊΠΎΡΠΎΡΠΎΠΉ Π΄Π°Π΅ΡΡΡ ΠΊΡΠ°ΡΠΊΠΎΠ΅ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ ΠΏΡΠΈΠ½ΡΠΈΠΏΠΎΠ² ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² Π΅Π΅ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ, ΠΏΡΠΈΠ²ΠΎΠ΄ΡΡΡΡ Π½Π°Π³Π»ΡΠ΄Π½ΡΠ΅ ΠΏΡΠΈΠΌΠ΅ΡΡ Π²ΡΠ΄Π΅Π»Π΅Π½Π½ΡΡ
Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠ°Π·Π»ΠΎΠΌΠΎΠ² ΠΈ Π½Π΅ΠΎΡΠ΅ΠΊΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΡΡΠΊΡΡΡ, ΡΠ΅ΡΠ½ΠΎ ΡΠ²ΡΠ·Π°Π½Π½ΡΡ
Ρ ΡΠ΅Π³ΠΈΠΎΠ½Π°Π»ΡΠ½ΡΠΌΠΈ ΡΠΏΠΈΡΠ΅Π½ΡΡΠ°ΠΌΠΈ Π·Π΅ΠΌΠ»Π΅ΡΡΡΡΠ΅Π½ΠΈΠΉ
Dynamics of the Zones of Strong Earthquake Epicenters in the ArcticβAsian Seismic Belt
Our comprehensive study of the Russian Arctic region aims to clarify the features and types of seismotectonic deformation of the crust in the Arctic–Asian Seismic Belt, specifically in the zones of strong earthquakes in the Laptev Sea Segment, the Kharaulakh Segment, and the Chersky Seismotectonic Zone. We have analyzed modern tectonic structures and active fault systems, as well as tectonic stress fields reconstructed by tectonophysical analysis of the Late Cenozoic faults and folds. The investigated neotectonic structures are ranked with respect to the regional classification principles. Changes in the crustal stress–strain state in the lithospheric plate boundaries between the Eurasian, North American, and Okhotsk Sea Plates are analyzed, and regularities of such changes are discovered. A set of models has been constructed for the studied segments of plate boundaries with account of the dynamics of the regional geological structures. The models can give a framework for the assessment of potential seismic risks of seismogenerating structures in the Russian Arctic region
A SEISMOTECTONIC MAP OF EASTERN SIBERIA
The paper reviews goals and objectives, stages and the content of seismotectonic studies conducted in Eastern Siberia. Such studies are based on a comprehensive analysis of geological and geophysical data and provide for establishing whether the local earthquakes are of tectonic origin and revealing their relationships with recent geodynamic processes in the area under study. Seismic hazard assessment and evaluation of tectonic processes are the two major, closely interrelated aspects of seismotectonic studies. The latter are generally conducted in combination with seismic studies prior to the stage of detailed seismic zonation (DSZ) which is followed by seismic micro-zonation (SMZ). In three stages of seismotectonic studies, we analyse specific geological structures, reveal the regional dynamics of seismotectonic processes, clarify details of potential seismic hazard locations and identify sites of the potential instantaneous deformation of the crust which may take place due to active faulting. Based on results of the long-term studies conducted by the authors, a seismotectonic map of Eastern Siberia is compiled. The paper briefly reviews the methods of mapping and refers to data on active faults and neotectonic structures revealed in the area under study, which are closely related to regional earthquake sources