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The 23 and 24 January 2022 Tabriz (Northwestern Iran) small earthquakes: Seismological study and seismotectonic implication.

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Title: The 23 and 24 January 2022 Tabriz (Northwestern Iran) small earthquakes: Seismological study and seismotectonic implication.
Authors: Rahimzadeh, Saeid1 (AUTHOR) saeid.rahimzadeh@ut.ac.ir, M. Asayesh, Behnam2,3 (AUTHOR) maleki@gfz.de, Mirzaei, Noorbakhsh1 (AUTHOR) nmirzaii@ut.ac.ir, Pakzad, Mehrdad1 (AUTHOR) pakzad@ut.ac.ir
Source: Journal of Seismology. Jun2025, Vol. 29 Issue 3, p535-552. 18p.
Subject Terms: *Ground motion, *Earth sciences, *Strains & stresses (Mechanics), *Seismotectonics, *Geophysics
Geographic Terms: Tabriz (Iran)
Abstract: This study analyzes the characteristics of the January 23 and 24, 2022, Tabriz earthquakes in northwestern Iran. These events, with magnitudes of M w 4.2 and M w 4.0, occurred within the Tabriz pull-apart basin and represent the largest seismic occurrences in the region over the past two centuries. Focal mechanism solutions indicate strike-slip faulting for the first event and normal faulting with a strike-slip component for the second event. Both events occurred on NW-trending faults. Based on recorded ground motion data, the first event ruptured in the NW direction, while the second event ruptured in the opposite direction (SE). Coulomb stress changes analysis suggests that stress changes imparted by the first event, estimated about 0.1 bar at the hypocenter of the second event, likely promoted its triggering. These findings highlight the active tectonics of the Tabriz Basin and the significant seismic hazards posed by its active faults, particularly for the city of Tabriz, which has a population over 2 million and is situated within the basin. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 186711459
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PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: The 23 and 24 January 2022 Tabriz (Northwestern Iran) small earthquakes: Seismological study and seismotectonic implication.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Seismology%22">Journal of Seismology</searchLink>. Jun2025, Vol. 29 Issue 3, p535-552. 18p.
– Name: Subject
  Label: Subject Terms
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  Data: *<searchLink fieldCode="DE" term="%22Ground+motion%22">Ground motion</searchLink><br />*<searchLink fieldCode="DE" term="%22Earth+sciences%22">Earth sciences</searchLink><br />*<searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br />*<searchLink fieldCode="DE" term="%22Seismotectonics%22">Seismotectonics</searchLink><br />*<searchLink fieldCode="DE" term="%22Geophysics%22">Geophysics</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Tabriz+%28Iran%29%22">Tabriz (Iran)</searchLink>
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  Label: Abstract
  Group: Ab
  Data: This study analyzes the characteristics of the January 23 and 24, 2022, Tabriz earthquakes in northwestern Iran. These events, with magnitudes of M w 4.2 and M w 4.0, occurred within the Tabriz pull-apart basin and represent the largest seismic occurrences in the region over the past two centuries. Focal mechanism solutions indicate strike-slip faulting for the first event and normal faulting with a strike-slip component for the second event. Both events occurred on NW-trending faults. Based on recorded ground motion data, the first event ruptured in the NW direction, while the second event ruptured in the opposite direction (SE). Coulomb stress changes analysis suggests that stress changes imparted by the first event, estimated about 0.1 bar at the hypocenter of the second event, likely promoted its triggering. These findings highlight the active tectonics of the Tabriz Basin and the significant seismic hazards posed by its active faults, particularly for the city of Tabriz, which has a population over 2 million and is situated within the basin. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=186711459
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s10950-025-10290-3
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 18
        StartPage: 535
    Subjects:
      – SubjectFull: Ground motion
        Type: general
      – SubjectFull: Earth sciences
        Type: general
      – SubjectFull: Strains & stresses (Mechanics)
        Type: general
      – SubjectFull: Seismotectonics
        Type: general
      – SubjectFull: Geophysics
        Type: general
      – SubjectFull: Tabriz (Iran)
        Type: general
    Titles:
      – TitleFull: The 23 and 24 January 2022 Tabriz (Northwestern Iran) small earthquakes: Seismological study and seismotectonic implication.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Rahimzadeh, Saeid
      – PersonEntity:
          Name:
            NameFull: M. Asayesh, Behnam
      – PersonEntity:
          Name:
            NameFull: Mirzaei, Noorbakhsh
      – PersonEntity:
          Name:
            NameFull: Pakzad, Mehrdad
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          Dates:
            – D: 01
              M: 06
              Text: Jun2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 13834649
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              Value: 29
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              Value: 3
          Titles:
            – TitleFull: Journal of Seismology
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