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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">685203</article-id><article-id pub-id-type="doi">10.31857/S0203030624060011</article-id><article-id pub-id-type="edn">HZOOPV</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">Pacific tsunamigenic earthquakes of early 2024</article-title><trans-title-group xml:lang="ru"><trans-title>Тихоокеанские цунамигенные землетрясения начала 2024 года</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dolgikh</surname><given-names>G. I.</given-names></name><name xml:lang="ru"><surname>Долгих</surname><given-names>Г. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dolgikh@poi.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dolgikh</surname><given-names>S. G.</given-names></name><name xml:lang="ru"><surname>Долгих</surname><given-names>С. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sdolgikh@poi.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Il'ichev Pacific Oceanological Institute FEB RAS</institution></aff><aff><institution xml:lang="ru">Тихоокеанский океанологический институт им. В.И. Ильичёва ДВО РАН</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>3</fpage><lpage>8</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/685203">https://journals.eco-vector.com/0203-0306/article/view/685203</self-uri><abstract xml:lang="en"><p>Using the example of two tsunamigenic earthquakes, a method for determining the magnitude of the displacement of the seabed, which is the cause of the tsunami, is being worked out. It is shown that with an average coefficient of divergence of deformation anomalies recorded by a laser strainmeter for the entire planet, it is possible to approximately estimate the amount of displacement of the seabed at the site of tsunami formation. For each region where the tsunami originated, there are more accurate divergence coefficients that can be estimated experimentally and from which the values of seabed displacements can be more accurately determined.</p></abstract><trans-abstract xml:lang="ru"><p>На примере двух цунамигенных землетрясений отрабатывается методика определения величины смещения морского дна, являющегося причиной возникновения цунами. Показано, что при усредненном коэффициенте расходимости зарегистрированных лазерным деформографом деформационных аномалий для всей планеты можно примерно оценить величину смещения морского дна в месте образования цунами. Для каждого региона, где произошло зарождение цунами, существуют более точные коэффициенты расходимости, которые можно оценить экспериментально и по которым можно более точно определить величины смещений морского дна.</p></trans-abstract><kwd-group xml:lang="en"><kwd>earthquake</kwd><kwd>deformation anomaly</kwd><kwd>coefficient of divergence</kwd><kwd>tsunami</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>землетрясение</kwd><kwd>деформационная аномалия</kwd><kwd>коэффициент расходимости</kwd><kwd>цунами</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Министерство науки и высшего образования Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Ministry of Science and Higher Education of the Russian Federation</institution></institution-wrap></funding-source><award-id>075-03-2024-469</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Долгих Г.И., Долгих C.Г. 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