Scholarlink

<p>This study investigates the spatio-temporal characteristics of seismicity in the Kopeh-Dagh region between 2006 and 2024 using analyses of magnitude of completeness (Mc), b-value, and correlation dimension (Dc<b>)</b>. The temporal magnitude of completeness varies between approximately 1.5 and 1.9, while the overall completeness magnitude estimated from the frequency–magnitude distribution is Mc = 1.6, indicating that the earthquake catalogue is sufficiently complete above this threshold. The regional b-value is estimated as 0.78 ± 0.01, slightly lower than the global average of about 1.0. Spatially, relatively low b-values (≤ 0.77) are concentrated in the southern and western Kopeh-Dagh, whereas moderate to higher values occur mainly in the central and eastern sectors. The correlation dimension also exhibits pronounced spatial variability, with lower Dc ​values (0.3–0.99) in the southern and western parts of the belt, indicating clustered seismicity, and higher values (1.6–2.3) in the central and northeastern regions, reflecting more diffuse seismicity patterns. Temporal variations in the b-value, ranging from approximately 0.6 to 1.05, suggest changes in seismicity characteristics during the study period. The combined spatial distributions of b value and Dc ​highlight differences in seismicity organization across the Kopeh-Dagh region and provide a statistical description of its seismotectonic behaviour.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

A comprehensive analysis of spatio-temporal seismicity parameters in the Kope-Dagh Region

  • 期刊论文

  • 发表日期：

    2026年6月27日

查看全文
  • Muhammed Hossein Mousavi,
  • Parastoo Jalooli,
  • Amir Talebi

摘要

This study investigates the spatio-temporal characteristics of seismicity in the Kopeh-Dagh region between 2006 and 2024 using analyses of magnitude of completeness (Mc), b-value, and correlation dimension (Dc). The temporal magnitude of completeness varies between approximately 1.5 and 1.9, while the overall completeness magnitude estimated from the frequency–magnitude distribution is Mc = 1.6, indicating that the earthquake catalogue is sufficiently complete above this threshold. The regional b-value is estimated as 0.78 ± 0.01, slightly lower than the global average of about 1.0. Spatially, relatively low b-values (≤ 0.77) are concentrated in the southern and western Kopeh-Dagh, whereas moderate to higher values occur mainly in the central and eastern sectors. The correlation dimension also exhibits pronounced spatial variability, with lower Dc ​values (0.3–0.99) in the southern and western parts of the belt, indicating clustered seismicity, and higher values (1.6–2.3) in the central and northeastern regions, reflecting more diffuse seismicity patterns. Temporal variations in the b-value, ranging from approximately 0.6 to 1.05, suggest changes in seismicity characteristics during the study period. The combined spatial distributions of b value and Dc ​highlight differences in seismicity organization across the Kopeh-Dagh region and provide a statistical description of its seismotectonic behaviour.