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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-2023-14-1-0688</article-id><article-id custom-type="elpub" pub-id-type="custom">gtcrust-1632</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>ТЕКТОНОФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TECTONOPHYSICS</subject></subj-group></article-categories><title-group><article-title>О ВОЗМОЖНОСТИ ВОЗНИКНОВЕНИЯ СИЛЬНОГО (МАГНИТУДА М≥6.0) ЗЕМЛЕТРЯСЕНИЯ В ЮЖНО-ФЕРГАНСКОЙ СЕЙСМОАКТИВНОЙ ЗОНЕ В БЛИЖАЙШИЕ ГОДЫ</article-title><trans-title-group xml:lang="en"><trans-title>THE PROBABILITY OF A STRONG (M≥6.0) EARTHQUAKE IN THE SOUTH FERGANA SEISMIC ACTIVITY ZONE IN THE COMING YEARS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ибрагимов</surname><given-names>Р. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Ibragimov</surname><given-names>R. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>100128, Ташкент, ул. Зульфияхонум, 3</p></bio><bio xml:lang="en"><p>3 Zulfiyakhonum St, Tashkent 100128</p></bio><email xlink:type="simple">ibrroma@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ибрагимова</surname><given-names>Т. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Ibragimova</surname><given-names>T. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>100128, Ташкент, ул. Зульфияхонум, 3</p></bio><bio xml:lang="en"><p>3 Zulfiyakhonum St, Tashkent 100128</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мирзаев</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mirzaev</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>100128, Ташкент, ул. Зульфияхонум, 3</p></bio><bio xml:lang="en"><p>3 Zulfiyakhonum St, Tashkent 100128</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ребецкий</surname><given-names>Ю. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Rebetsky</surname><given-names>Yu. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>123242, Москва, ул. Большая Грузинская, 10, стр. 1</p></bio><bio xml:lang="en"><p>10-1 Bolshaya Gruzinskaya St, Moscow 123242</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт сейсмологии им. Г.А. Мавлянова АН РУз</institution><country>Узбекистан</country></aff><aff xml:lang="en"><institution>Mavlyanov Institute of Seismology, Uzbekistan Academy of Sciences</institution><country>Uzbekistan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт физики Земли им. О.Ю. Шмидта РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Schmidt Institute of Physics of the Earth, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>18</day><month>02</month><year>2023</year></pub-date><volume>14</volume><issue>1</issue><fpage>688</fpage><lpage>688</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ибрагимов Р.С., Ибрагимова Т.Л., Мирзаев М.А., Ребецкий Ю.Л., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Ибрагимов Р.С., Ибрагимова Т.Л., Мирзаев М.А., Ребецкий Ю.Л.</copyright-holder><copyright-holder xml:lang="en">Ibragimov R.S., Ibragimova T.L., Mirzaev M.A., Rebetsky Y.L.</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/1632">https://www.gt-crust.ru/jour/article/view/1632</self-uri><abstract><p>Исследован сейсмический режим и напряженное состояние земной коры Южно-Ферганской сейсмоактивной зоны. В центральной части зоны выявлен участок, на котором наблюдается длительное сейсмическое затишье по землетрясениям с энергетическим классом К≥12 (М≥4.5). По всей протяженности области сейсмического затишья отмечается активизация по землетрясениям низких энергетических классов, а также аномальные флуктуации угла наклона графика повторяемости землетрясений. Для локализации места возможной сейсмической активизации проведена реконструкция современного напряженного состояния земной коры Южно-Ферганской сейсмоактивной зоны методами катакластического анализа разрывных смещений с привлечением механизмов очагов землетрясений. Определены участки с низкими значениями эффективного всестороннего давления и максимальных касательных напряжений, в которых, как правило, реализуются сильные землетрясения. С учетом особенностей напряженного состояния земной коры по совокупности прогностических параметров сейсмического режима в пределах Южно-Ферганской сейсмоактивной зоны выделены две области, в которых в ближайшие годы могут произойти землетрясения с магнитудой М≥6.0.</p></abstract><trans-abstract xml:lang="en"><p>There were investigated seismic mode and stress state of the Earth’s crust in the South Fergana seismic activity zone. In the central part of the zone, there was identified an area of a long-term seismic quiescence during which no earthquakes with energy class K≥12 (M≥4.5) were recorded. Along the entire length of the seismic quiescence area, there occur an activation of earthquakes of lower energy classes, as well as anomalous fluctuations of the recurrence curve slope. To localize the place of seismic activation probability, the current stress of earth’s crust in the South Fergana seismic activity zone was reconstructed according to focal earthquake mechanisms by the methods of cataclastic analysis of displacements. There were identified the areas with low values of effective confining pressure and maximum shear stresses where strong earthquakes usually occur. Taking into account the stressed state of the Earth’s crust, on the basis of the prognostic parameters of the seismic regime within the South Fergana seismic activity zone there were identified two areas in which M≥6.0 earthquakes may occur in the coming years.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сейсмическое затишье</kwd><kwd>сейсмическая активизация</kwd><kwd>сейсмическая брешь</kwd><kwd>прогноз землетрясений</kwd><kwd>график повторяемости</kwd><kwd>напряженное состояние</kwd><kwd>реконструкция напряжений</kwd></kwd-group><kwd-group xml:lang="en"><kwd>seismic quiescence</kwd><kwd>seismic activation</kwd><kwd>seismic gap</kwd><kwd>earthquake forecast</kwd><kwd>recurrence curve</kwd><kwd>stress state</kwd><kwd>stress reconstruction</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках госзаданий Института сейсмологии АН РУз и ИФЗ РАН</funding-statement><funding-statement xml:lang="en">The study was carried out as art of a state assignments of the Mavlyanov Institute of Seismology of the Academy of Sciences of the Republic of Uzbekistan and the Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences</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">Artikov T.U., Ibragimov R.S., Ibragimova T.L., Mirzaev M.A., 2018. 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