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<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">Front. Earth Sci.</journal-id>
<journal-title>Frontiers in Earth Science</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Front. Earth Sci.</abbrev-journal-title>
<issn pub-type="epub">2296-6463</issn>
<publisher>
<publisher-name>Frontiers Media S.A.</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="publisher-id">1258767</article-id>
<article-id pub-id-type="doi">10.3389/feart.2023.1258767</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Earth Science</subject>
<subj-group>
<subject>Correction</subject>
</subj-group>
</subj-group>
</article-categories>
<title-group>
<article-title>Corrigendum: The february 2018 seismic swarm in S&#xe3;o Miguel, Azores</article-title>
<alt-title alt-title-type="left-running-head">Soares et al.</alt-title>
<alt-title alt-title-type="right-running-head">
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/feart.2023.1258767">10.3389/feart.2023.1258767</ext-link>
</alt-title>
</title-group>
<contrib-group>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Soares</surname>
<given-names>A.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1853920/overview"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Cust&#xf3;dio</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Cesca</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1123295/overview"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Silva</surname>
<given-names>R.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1944097/overview"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Vuan</surname>
<given-names>A.</given-names>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
<xref ref-type="aff" rid="aff6">
<sup>6</sup>
</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1170330/overview"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Mendes</surname>
<given-names>V. B.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1739002/overview"/>
</contrib>
</contrib-group>
<aff id="aff1">
<sup>1</sup>
<institution>Instituto Dom Luiz</institution>, <institution>Faculdade de Ci&#xea;ncias da Universidade de Lisboa</institution>, <addr-line>Lisboa</addr-line>, <country>Portugal</country>
</aff>
<aff id="aff2">
<sup>2</sup>
<institution>GFZ German Research Centre for Geosciences</institution>, <addr-line>Potsdam</addr-line>, <country>Germany</country>
</aff>
<aff id="aff3">
<sup>3</sup>
<institution>CIVISA Centro de Informa&#xe7;&#xe3;o e Vigil&#xe2;ncia Sismovulc&#xe2;nica dos A&#xe7;ores</institution>, <addr-line>Ponta Delgada</addr-line>, <country>Portugal</country>
</aff>
<aff id="aff4">
<sup>4</sup>
<institution>IVAR Instituto de Investiga&#xe7;&#xe3;o em Vulcanologia e Avalia&#xe7;&#xe3;o de Riscos</institution>, <addr-line>Ponta Delgada</addr-line>, <country>Portugal</country>
</aff>
<aff id="aff5">
<sup>5</sup>
<institution>OGS National Institute of Oceanography and Applied Geophysics</institution>, <addr-line>Trieste</addr-line>, <country>Italy</country>
</aff>
<aff id="aff6">
<sup>6</sup>
<institution>INGV National Institute of Geophysics and Vulcanology</institution>, <addr-line>Rome</addr-line>, <country>Italy</country>
</aff>
<author-notes>
<fn fn-type="edited-by">
<p>
<bold>Edited and reviewed by:</bold> <ext-link ext-link-type="uri" xlink:href="https://loop.frontiersin.org/people/92148/overview">Giovanni Martinelli</ext-link>, National Institute of Geophysics and Volcanology, Italy</p>
</fn>
<corresp id="c001">&#x2a;Correspondence: A. Soares, <email>analdyne.soares@campus.ul.pt</email>
</corresp>
</author-notes>
<pub-date pub-type="epub">
<day>01</day>
<month>09</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="collection">
<year>2023</year>
</pub-date>
<volume>11</volume>
<elocation-id>1258767</elocation-id>
<history>
<date date-type="received">
<day>14</day>
<month>07</month>
<year>2023</year>
</date>
<date date-type="accepted">
<day>07</day>
<month>08</month>
<year>2023</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright &#xa9; 2023 Soares, Cust&#xf3;dio, Cesca, Silva, Vuan and Mendes.</copyright-statement>
<copyright-year>2023</copyright-year>
<copyright-holder>Soares, Cust&#xf3;dio, Cesca, Silva, Vuan and Mendes</copyright-holder>
<license xlink:href="http://creativecommons.org/licenses/by/4.0/">
<p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</p>
</license>
</permissions>
<related-article id="RA1" related-article-type="corrected-article" journal-id="Front. Earth Sci." journal-id-type="nlm-ta" xlink:href="10.3389/feart.2023.1144151" ext-link-type="doi">A Corrigendum on <article-title>The february 2018 seismic swarm in S&#xe3;o Miguel, Azores</article-title> by Soares A, Cust&#xf3;dio S, Cesca S, Silva R, Vuan A and Mendes VB (2023). Front. Earth Sci. 11:1144151. doi: <object-id>10.3389/feart. 2023.1144151</object-id>
</related-article>
<kwd-group>
<kwd>spatio-temporal earthquake evolution</kwd>
<kwd>earthquake detection-location</kwd>
<kwd>waveform analysis</kwd>
<kwd>seismic swarm</kwd>
<kwd>S&#xe3;o Miguel island</kwd>
<kwd>Azores triple junction</kwd>
</kwd-group>
<custom-meta-wrap>
<custom-meta>
<meta-name>section-at-acceptance</meta-name>
<meta-value>Solid Earth Geophysics</meta-value>
</custom-meta>
</custom-meta-wrap>
</article-meta>
</front>
<body>
<p>In the published article, there was an error in the text of the <bold>Abstract</bold>. The sentence in question previously stated:</p>
<p>&#x201c;After &#x223c;1&#xa0;week, a new earthquake family emerged at shallower depths (&#x223c;8&#x2013;12&#xa0;km) reaching magnitudes up to ML 3.7&#x201d;.</p>
<p>The corrected sentence appears below:</p>
<p>&#x201c;After &#x223c;1&#xa0;week, a new earthquake family emerged at shallower depths (&#x223c;8&#x2013;12&#xa0;km) reaching magnitudes up to ML 3.4&#x201d;.</p>
<p>Additionally, there was an error in (<xref ref-type="fig" rid="F1">Figure 1</xref>) as published. The colorbar legend of <xref ref-type="fig" rid="F1">Figure 1B</xref> was ranged from 0.0 to 1.0 when it should have specified the types of focal mechanism: Reverse (RV), Strike-Slip (SS) and Normal (NM) ordered from bottom to top.</p>
<fig id="F1" position="float">
<label>FIGURE 1</label>
<caption>
<p>
<bold>(A)</bold> Location of the Azores Archipelago, in the triple junction between the North American, Eurasian and Nubian plates. Earthquake locations are shown according to the ISC catalog from 1995 to 2021 (brown dots). The currently inactive East Azores Fracture Zone (EAFZ) is shown by a dotted line and the rectangle identifies the Azores archipelago region, shown in <bold>(B)</bold>. <bold>(B)</bold> Earthquake epicenters (brown dots) and focal mechanism, sized by magnitude, indicating a dominantly transtensional regime from the Global CMT catalog <bold>(Ekstr&#xf6;m et al., 2012)</bold>. Colors indicate the type of faulting, from reverse (blue) through strike-slip (red) to normal (green), according to the Kaverina classification <bold>(Kaverina et al., 1996)</bold>, as implemented in FMC <bold>(&#xc1;lvarez-G&#xf3;mez, 2019)</bold>. The three events with magnitude Mw &#x3e; 6 mentioned in the text are identified by their dates. The rectangle identifies the S. Miguel region, shown in <bold>(C)</bold>. <bold>(C)</bold> Earthquake epicenters in S. Miguel colored according to time of occurrence, circle size indicates magnitude. S. Miguel Digital Elevation Model (DEM) was generated from a 1:5,000 scale digital altimetric database from the Secretaria Regional do Turismo e Transportes of the Azores Government. It is also shown the locations of the volcano-tectonic features identified in <bold>Carmo et al. (2015)</bold>: (SCV) Sete Cidades Volcano; (PFVS) Picos Fissural Volcanic System; (FGV) Fogo Volcano; (CFVS) Congro Fissural Volcanic System; (FNV) Furnas Volcano; (PV) Povoa&#xe7;&#xe3;o Volcano; (NVS) Nordeste Volcanic System.</p>
</caption>
<graphic xlink:href="feart-11-1258767-g001.tif"/>
</fig>
<p>The corrected (<xref ref-type="fig" rid="F1">Figure 1</xref>) and its caption &#x201c;(A) Location of the Azores Archipelago, in the triple junction between the North American, Eurasian and Nubian plates. Earthquake locations are shown according to the ISC catalog from 1995 to 2021 (brown dots). The currently inactive East Azores Fracture Zone (EAFZ) is shown by a dotted line and the rectangle identifies the Azores archipelago region, shown in (B). (B) Earthquake epicenters (brown dots) and focal mechanism, sized by magnitude, indicating a dominantly transtensional regime from the Global CMT catalog <bold>(Ekstr&#xf6;m et al., 2012)</bold>. Colors indicate the type of faulting, from reverse (blue) through strike-slip (red) to normal (green), according to the Kaverina classification <bold>(Kaverina et al., 1996)</bold>, as implemented in FMC <bold>(&#xc1;lvarez-G&#xf3;mez, 2019)</bold>. The three events with magnitude Mw &#x3e; 6 mentioned in the text are identified by their dates. The rectangle identifies the S. Miguel region, shown in (C). (C) Earthquake epicenters in S. Miguel colored according to time of occurrence, circle size indicates magnitude. S. Miguel Digital Elevation Model (DEM) was generated from a 1:5000 scale digital altimetric database from the Secretaria Regional do Turismo e Transportes of the Azores Government. It is also shown the locations of the volcano-tectonic features identified in Carmo et al. (2015): (SCV) Sete Cidades Volcano; (PFVS) Picos Fissural Volcanic System; (FGV) Fogo Volcano; (CFVS) Congro Fissural Volcanic System; (FNV) Furnas Volcano; (PV) Povoa&#xe7;&#xe3;o Volcano; (NVS) Nordeste Volcanic System&#x201d;. appear below.</p>
<p>The authors apologize for these errors and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.</p>
</body>
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