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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Journal of Volcanology and Seismology</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Volcanology and Seismology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вулканология и сейсмология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0203-0306</issn><issn publication-format="electronic">3034-5138</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">685205</article-id><article-id pub-id-type="doi">10.31857/S0203030624060035</article-id><article-id pub-id-type="edn">HZEFRG</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Determination of seismic regime parameters for seismic hazard assessment within the territory of the Irkutsk oblast</article-title><trans-title-group xml:lang="ru"><trans-title>Определение параметров сейсмического режима для оценки сейсмической опасности в пределах территории Иркутской области</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shebalin</surname><given-names>P. N.</given-names></name><name xml:lang="ru"><surname>Шебалин</surname><given-names>П. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>p.n.shebalin@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vorobieva</surname><given-names>I. A.</given-names></name><name xml:lang="ru"><surname>Воробьева</surname><given-names>И. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>p.n.shebalin@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Baranov</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Баранов</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Kola Branch (KB) FRC UGS RAS</p></bio><bio xml:lang="ru"><p>Кольский филиал (КоФ) ФИЦ ЕГС РАН</p></bio><email>p.n.shebalin@gmail.com</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kovalenko</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Коваленко</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>anton.kovalenko@rnrc.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Livinskiy</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Ливинский</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>p.n.shebalin@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lykova</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Лыкова</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>anton.kovalenko@rnrc.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Earthquake Prediction Theory and Mathematical Geophysics, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт теории прогноза землетрясений и математической геофизики РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">FRC UGS RAS</institution></aff><aff><institution xml:lang="ru">ФИЦ ЕГС РАН</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Russian National Reinsurance Company</institution></aff><aff><institution xml:lang="ru">АО “Российская национальная перестраховочная компания”</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-12-18" publication-format="electronic"><day>18</day><month>12</month><year>2024</year></pub-date><issue>6</issue><fpage>18</fpage><lpage>27</lpage><history><date date-type="received" iso-8601-date="2025-06-19"><day>19</day><month>06</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0203-0306/article/view/685205">https://journals.eco-vector.com/0203-0306/article/view/685205</self-uri><abstract xml:lang="en"><p>The article considers the problem of determining the parameters of the seismic regime for the territory of the Irkutsk region. To solve this problem, a complete catalog of earthquakes within the studied region with a unified magnitude scale was created for the time period from 1962 to 2021. Determination of seismic regime parameters is an important step for subsequent seismic hazard assessments. The solution of this problem is extremely important for insurance and reinsurance companies, as it makes it possible to use the probabilistic approach in the tasks of earthquake risk assessment, which in turn allows to make the most correct management decisions and ensure the stability of the company’s financial system.</p></abstract><trans-abstract xml:lang="ru"><p>В данной статье рассматривается задача определения параметров сейсмического режима для территории Иркутской области. Для решения данной задачи был создан полный каталог землетрясений в пределах исследуемого региона с унифицированной шкалой магнитуд за временной период с 1962 по 2021 гг. Определение параметров сейсмического режима является важным этапом для проведения последующих оценок сейсмической опасности. Решение данной задачи крайне важно для страховых и перестраховочных компаний, так как появляется возможность наиболее точно использовать вероятностный подход в задачах оценки риска воздействия от землетрясений, что в свою очередь позволяет принимать наиболее верные управленческие решения и обеспечивать стабильность финансовой системы компании.</p></trans-abstract><kwd-group xml:lang="en"><kwd>seismic regime</kwd><kwd>seismic hazard</kwd><kwd>earthquake catalog</kwd><kwd>risk assessment</kwd><kwd>Irkutsk oblast</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>сейсмический режим</kwd><kwd>сейсмическая опасность</kwd><kwd>каталог землетрясений</kwd><kwd>оценка риска</kwd><kwd>Иркутская область</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Ризниченко Ю.В. 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