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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">gtcrust</journal-id><journal-title-group><journal-title xml:lang="ru">Геодинамика и тектонофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Geodynamics &amp; Tectonophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2078-502X</issn><publisher><publisher-name>Institute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.5800/GT-2025-16-4-0837</article-id><article-id custom-type="edn" pub-id-type="custom">XEMANX</article-id><article-id custom-type="elpub" pub-id-type="custom">gtcrust-2074</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СОВРЕМЕННАЯ ГЕОДИНАМИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RECENT GEODYNAMICS</subject></subj-group></article-categories><title-group><article-title>О СВЯЗИ ИЗМЕНЕНИЙ ПОЛНОГО ЭЛЕКТРОННОГО СОДЕРЖАНИЯ ИОНОСФЕРЫ ПЕРЕД СИЛЬНЫМИ КАМЧАТСКИМИ ЗЕМЛЕТРЯСЕНИЯМИ С ИЗМЕНЕНИЯМИ УДЕЛЬНОГО ЭЛЕКТРИЧЕСКОГО СОПРОТИВЛЕНИЯ ГЕОСРЕДЫ</article-title><trans-title-group xml:lang="en"><trans-title>ON THE RELATIONSHIP BETWEEN THE CHANGES IN THE TOTAL ELECTRON CONTENT OF THE IONOSPHERE BEFORE STRONG KAMCHATKA EARTHQUAKES AND THOSE IN THE SPECIFIC ELECTRICAL RESISTIVITY OF THE GEOMEDIUM</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8256-3306</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гаврилов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>683006, Петропавловск­-Камчатский, б-­р Пийпа, 9 </p></bio><bio xml:lang="en"><p>9 Piip Blvd, Petropavlovsk-Kamchatsky 683006</p></bio><email xlink:type="simple">vgavr1403@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-4253-3926</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полтавцева</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Poltavtseva</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>683006, Петропавловск­-Камчатский, б-­р Пийпа, 9 </p></bio><bio xml:lang="en"><p>9 Piip Blvd, Petropavlovsk-Kamchatsky 683006</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-2491-1391</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сагарьяров</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sagaryarov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>683006, Петропавловск­-Камчатский, б-­р Пийпа, 9 </p></bio><bio xml:lang="en"><p>9 Piip Blvd, Petropavlovsk-Kamchatsky 683006</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3209-1093</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бусс</surname><given-names>Ю. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Buss</surname><given-names>Yu. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>683006, Петропавловск­-Камчатский, б-­р Пийпа, 9 </p></bio><bio xml:lang="en"><p>9 Piip Blvd, Petropavlovsk-Kamchatsky 683006</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт вулканологии и сейсмологии ДВО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Volcanology and Seismology, Far Eastern Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>16</day><month>08</month><year>2025</year></pub-date><volume>16</volume><issue>4</issue><fpage>837</fpage><lpage>837</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гаврилов В.А., Полтавцева Е.В., Сагарьяров И.А., Бусс Ю.Ю., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Гаврилов В.А., Полтавцева Е.В., Сагарьяров И.А., Бусс Ю.Ю.</copyright-holder><copyright-holder xml:lang="en">Gavrilov V.A., Poltavtseva E.V., Sagaryarov I.A., Buss Y.Y.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.gt-crust.ru/jour/article/view/2074">https://www.gt-crust.ru/jour/article/view/2074</self-uri><abstract><p>Оценивается возможность влияния изменений удельного электрического сопротивления (УЭС) верхних горизонтов земной коры на формирование масштабных аномалий полного электронного содержания (ПЭС) ионосферы, достаточно стабильно регистрируемых перед сильными землетрясениями в различных сейсмоактивных районах мира. Для этой цели результаты мониторинга ПЭС ионосферы на заключительных стадиях подготовки Жупановского (30.01.2016 г., Mw=7.2) и Шипунского (17.08.2024 г., Mw=7.0) землетрясений сопоставлялись с изменениями УЭС геосреды в районе Петропавловск-Камчатского геодинамического полигона. Представленные результаты позволяют сделать вывод, что изменения ПЭС ионосферы на заключительных стадиях подготовки указанных землетрясений в значительной мере коррелируют с изменениями УЭС верхней (примерно до 1000 м) части земной коры в соответствующих подионосферных областях. Обсуждается возможная физическая основа полученных результатов.</p></abstract><trans-abstract xml:lang="en"><p>The article assesses the possibility of influence of changes in the electrical resistivity of the upper horizons of the Earth’s crust on the formation of large-scale anomalies of the ionospheric total electron content (TEC), recorded before strong earthquakes in various seismically active regions of the world. The results of monitoring the ionospheric TEC at the final preparatory stages of the Zhupanov (January 30, 2016, Mw=7.2) and Shipunsky (August 17, 2024, Mw=7.0) earthquakes were compared with changes in the electrical resistivity of the geomedium in the Petropavlovsk-Kamchatsky geodynamic polygon. The presented results allow us to conclude that the changes in the ionospheric TEC at the final preparatory stages of these earthquakes are significantly correlated with the changes in the electrical resistivity of the upper (up to approximately 1000 m) part of the Earth’s crust in the corresponding subionospheric regions. The paper discusses a possible physical basis for the obtained results.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>удельное электрическое сопротивление</kwd><kwd>геосреда</kwd><kwd>полное электронное содержание</kwd><kwd>ионосфера</kwd><kwd>скважинные измерения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>specific electric resistance</kwd><kwd>geomedium</kwd><kwd>total electron content</kwd><kwd>ionosphere</kwd><kwd>borehole measurements</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование проведено при поддержке РНФ (проект № 23­27­00352).</funding-statement><funding-statement xml:lang="en">The study was supported by the RSF (project No. 23-27-00352).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Афраймович Э.Л., Перевалова Н.П. GPS-мониторинг верхней атмосферы Земли. 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