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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Solnechno-Zemnaya Fizika</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Solnechno-Zemnaya Fizika</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Солнечно-земная физика</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2712-9640</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">38144</article-id>
   <article-id pub-id-type="doi">10.12737/szf-64202012</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Результаты  исследований</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Results of current research</subject>
    </subj-group>
    <subj-group>
     <subject>Результаты  исследований</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Earthquakes and geomagnetic disturbances</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Землетрясения и геомагнитные возмущения</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Гульельми</surname>
       <given-names>Анатолий Владимирович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Guglielmi</surname>
       <given-names>Anatol Vladimirovich</given-names>
      </name>
     </name-alternatives>
     <email>guglielmi@mail.ru</email>
     <bio xml:lang="ru">
      <p>доктор физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Клайн</surname>
       <given-names>Борис Ицикович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Klain</surname>
       <given-names>Boris Icikovich</given-names>
      </name>
     </name-alternatives>
     <email>klain@borok.yar.ru</email>
     <bio xml:lang="ru">
      <p>доктор физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Куражковская</surname>
       <given-names>Надежда Андреевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Kurazhkovskaya</surname>
       <given-names>Nadezhda Andreevna</given-names>
      </name>
     </name-alternatives>
     <email>knady@borok.yar.ru</email>
     <bio xml:lang="ru">
      <p>кандидат физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт физики Земли им. О.Ю. Шмидта РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Schmidt Institute of Physics of the Earth, RAS</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Геофизическая обсерватория «Борок» ИФЗ РАН</institution>
     <city>Борок</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Borok Geophysical Observatory of IPE RAS</institution>
     <city>Borok</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Геофизическая обсерватория «Борок» ИФЗ РАН</institution>
     <city>Борок</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Borok Geophysical Observatory of IPE RAS</institution>
     <city>Borok</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <volume>6</volume>
   <issue>4</issue>
   <fpage>93</fpage>
   <lpage>98</lpage>
   <self-uri xlink:href="https://naukaru.ru/en/nauka/article/38144/view">https://naukaru.ru/en/nauka/article/38144/view</self-uri>
   <abstract xml:lang="ru">
    <p>Статья посвящена проблеме связи землетрясений с геомагнитными явлениями. Экспериментальное исследование произведено методом, в основе которого лежит, во-первых, выделение экстремально спокойных и возмущенных периодов в состоянии геомагнитного поля и, во-вторых, описание сейсмической активности с помощью индекса, названного авторами глобальной суточной магнитудой (GDM). Путем анализа каталога землетрясений NEIC Геологической службы США за 20-летний период с 1980 по 1999 г. показано, что планетарная активность землетрясений в экстремально спокойных геомагнитных условиях заметно выше, чем в возмущенных условиях. Обнаруженная тенденция к повышению сейсмической активности в экстремально геомагнитно-спокойные периоды косвенно подтверждается анализом 35 землетрясений с магнитудой 8 и выше, произошедших в 1980–2019 гг. Удалось обнаружить, что в экстремально спокойных геомагнитных условиях заметно повышена вероятность возникновения сильных землетрясений. Результат качественно подтверждает предположение об изменении режима сейсмической активности вследствие воздействия переменных магнитных полей на пластичность горных пород.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The article addresses the problem of the connection of earthquakes with geomagnetic phenomena. We have carried out an experimental study using a method based, firstly, on the separation of periods of geomagnetic activity into extremely quiet and disturbed, and, secondly, on the description of seismic activity with an index called the global daily magnitude (GDM). By analyzing the NEIC earthquake catalog of the US Geological Survey over a 20-year period from 1980 to 1999, we have shown that the planetary activity of earthquakes under extremely quiet geomagnetic conditions is noticeably higher than under disturbed conditions. The detected tendency for seismic activity to increase in extremely quiet periods of geomagnetic activity has indirectly been confirmed by the analysis of 35 earthquakes with magnitude 8 and higher, which occurred on Earth from 1980 to 2019. We have found that in extremely quiet geomagnetic conditions, the probability of the occurrence of strong earthquakes is noticeably higher. The result qualitatively confirms the assumption of a change in the regime of seismic activity due to the influence of alternating magnetic fields on the ductility of rocks.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>сейсмология</kwd>
    <kwd>геомагнетизм</kwd>
    <kwd>закон Гутенберга—Рихтера</kwd>
    <kwd>магнитные бури</kwd>
    <kwd>магнитопластичность</kwd>
    <kwd>ансамбль землетрясений</kwd>
    <kwd>статистическая сумма</kwd>
    <kwd>энтропия</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>seismology</kwd>
    <kwd>geomagnetism</kwd>
    <kwd>Gutenberg-Richter law</kwd>
    <kwd>magnetic storms</kwd>
    <kwd>magnetoplasticity</kwd>
    <kwd>earthquake ensemble</kwd>
    <kwd>statistical sum</kwd>
    <kwd>entropy</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
 </body>
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