Scholarlink

<p>The earthquake catalog maintained by the Iranian Seismological Center (IRSC), which includes information on more than 187,000 seismic events occurring between 2006 and 2024, serves as the primary reference for seismological research in Iran. However, this catalog does not distinguish between tectonic and non-tectonic events. In this study, we employed a statistical de-quarrying algorithm, based on the fact that quarry blasts predominantly occur during daytime hours, to identify and remove quarry and mine blasts from the IRSC’s earthquake catalog. By applying this algorithm, approximately 24% of the reported events were identified as quarry and mine blasts, with magnitudes ranging from 0.4 to 2.9. We provide the resulting earthquake catalog in the supplementary materials, along with comprehensive information on more than 142,000 earthquakes with magnitudes ranging from 0.3 to 7.6 over the 18-year period in Iran and adjacent regions. This will facilitate a thorough assessment of the accuracy and uncertainty of the location parameters in the catalog. We strongly advocate for the use of the purified earthquake catalog presented in this study for seismic research, as opposed to relying on the unfiltered IRSC catalog. However, to further enhance reliability, it is imperative to develop a more accurate catalog by distinguishing between non-tectonic and tectonic events in Iran through waveform or spectral analysis, particularly for smaller events.</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

Identifying and removing quarry and mine blasts from the iranian seismological center’s (IRSC) earthquake catalog (2006–2024)

  • 期刊论文

  • 发表日期：

    2025年6月2日

查看全文
  • Saeid Naserieh,
  • Ali Moradi,
  • Noorbakhsh Mirzaei,
  • Mohsen Dezvareh,
  • Ehsan Karkooti,
  • Hadi Ghofrani,
  • Mehdi Rahmati

摘要

The earthquake catalog maintained by the Iranian Seismological Center (IRSC), which includes information on more than 187,000 seismic events occurring between 2006 and 2024, serves as the primary reference for seismological research in Iran. However, this catalog does not distinguish between tectonic and non-tectonic events. In this study, we employed a statistical de-quarrying algorithm, based on the fact that quarry blasts predominantly occur during daytime hours, to identify and remove quarry and mine blasts from the IRSC’s earthquake catalog. By applying this algorithm, approximately 24% of the reported events were identified as quarry and mine blasts, with magnitudes ranging from 0.4 to 2.9. We provide the resulting earthquake catalog in the supplementary materials, along with comprehensive information on more than 142,000 earthquakes with magnitudes ranging from 0.3 to 7.6 over the 18-year period in Iran and adjacent regions. This will facilitate a thorough assessment of the accuracy and uncertainty of the location parameters in the catalog. We strongly advocate for the use of the purified earthquake catalog presented in this study for seismic research, as opposed to relying on the unfiltered IRSC catalog. However, to further enhance reliability, it is imperative to develop a more accurate catalog by distinguishing between non-tectonic and tectonic events in Iran through waveform or spectral analysis, particularly for smaller events.