title: Strong Ulakhan-Chistay earthquake (Ms = 5.7) January 20, 2013 in the zone of influence Ulakhan fault system in North East Russia
metadata.name: dc.contributor.author
metadata.value: Imaev, Valery S.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Imaeva, Lyudmila P.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Koz’min, Boris M.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2021-02-11T20:31:56Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2021-02-11T20:31:56Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2020-12
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Imaev, V. S., Imaeva, L. P., Koz’min, B. M. (2020). Strong Ulakhan-Chistay earthquake (Ms = 5.7) January 20, 2013 in the zone of influence Ulakhan fault system in North East Russia. Vestnik of Saint Petersburg University. Earth Sciences, 65 (4), 740–759.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2020.408
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/23892
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: In this paper we present the results of the interpretation of seismological, geologic-structural,
  seismotectonic and macroseismic data obtained for the focal zone of the strong Ulakhan-
  Chistay earthquake (Ms = 5.7), which occurred on January 20, 2013, in the Chersky
  seismotectonic zone on the boundary of the Eurasian and North American lithospheric plates.
  The shock occurred in the zone of a large Ulakhan fault, which is visible in satellite images
  and can be seen in the topography between the Indigirka and Kolyma Rivers at a distance
  of 1,500 km. Statistics of seismic observations in the last century and at the beginning of
  this century show that more than 14,000 local events were noted in the zone of influence
  of the Ulakhan fault within the crust (~ 35 km thick) at a depth of 7–30 km. The epicentral
  intensity of more than ten of them reached 6–8 on the Russian scale (MSK-64). In addition
  to high seismicity, additional geodynamic indicators of the reactivation of the Ulakhan fault
  in modern times were identified — in particular, high heat flux, icing processes, paleo- and
  modern seismic dislocations, etc. The macro effects of this event were studied on an area of
  300,000 square kilometers in three Arctic regions of Yakutia and in the south of the Magadan
  region; its epicenter is located by the proximity to the well-preserved paleoseismic dislocation
  Uryun-Takh-Takh, which arose more than a thousand years ago and is clearly visible in the
  search system of Google. As a result, a structural-dynamic model of the Ulakhan fault zone
  is proposed, explaining the occurrence of the Ulakhan-Chistay earthquake on the basis of
  the kinematic scheme of the Omulevsky block, which is undergoing extrusion by a collision
  between the Eurasian and North American lithospheric plates in Northeast Asia.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: The research was carried out with the financial support of the Russian Foundation for Basic Research
  within the framework of scientific project No. 19-05-00062, project IZK SB RAS (No. 346-2018-0001) and
  IGABM SB RAS (No. 0381-2019-0001), as well as the program of the Presidium of the Academy of Sciences
  of the Republic of Sakha (Yakutia) for a comprehensive study of its territory.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Earth Sciences;Volume 65; Issue 4
metadata.lang: -
metadata.name: dc.subject
metadata.value: seismicity
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: focal mechanisms of earthquakes
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: active faults
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: paleoseismic dislocations
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: lithospheric plates in Northeast Asia
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: extrusion of tectonic blocks
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Strong Ulakhan-Chistay earthquake (Ms = 5.7) January 20, 2013 in the zone of influence Ulakhan fault system in North East Russia
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 740-759.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/23892/1/740-759.pdf
resources.format: Adobe PDF
resources.size: 4,61 MB