<?xml version="1.0" encoding="ISO-8859-1"?><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">
<front>
<journal-meta>
<journal-id>0256-7024</journal-id>
<journal-title><![CDATA[Revista Geológica de América Central]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Geol. Amér. Central]]></abbrev-journal-title>
<issn>0256-7024</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0256-70242019000100133</article-id>
<article-id pub-id-type="doi">10.15517/rgac.v2019i60.36468</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[La sismicidad del 2018 en Costa Rica]]></article-title>
<article-title xml:lang="en"><![CDATA[The 2018 seismicity of Costa Rica]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Porras]]></surname>
<given-names><![CDATA[Juan Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Linkimer]]></surname>
<given-names><![CDATA[Lepolt]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arroyo]]></surname>
<given-names><![CDATA[Ivonne G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arroyo]]></surname>
<given-names><![CDATA[Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[Magda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fallas]]></surname>
<given-names><![CDATA[Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,UCR-ICE Red Sismológica Nacional ]]></institution>
<addr-line><![CDATA[San Pedro ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<numero>60</numero>
<fpage>133</fpage>
<lpage>144</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0256-70242019000100133&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0256-70242019000100133&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0256-70242019000100133&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Durante el 2018 la Red Sismológica Nacional (RSN: UCR-ICE) localizó 3233 sismos. De estos 285 eventos (~9%) fueron sentidos por la población, incluyendo cuatro sismos relevantes con magnitudes (Mw) entre 5,7 y 6,2. La mayoría (91%) de los sismos percibidos fueron superficiales (&lt; 30 km) y el 64 % tuvo una magnitud baja (Mw &lt; 3,9). El fallamiento local y el regional provocaron el 64 % de los sismos sentidos, 34% fueron originados por el proceso de subducción de la placa del Coco y solo tres sismos sentidos se asociaron con la Zona de Fractura de Panamá. Las zonas con la tasa de sismicidad más alta se encuentran localizadas en el volcán Tenorio, entre Cartago y Tarrazú y en el Golfo Dulce. La intensidad Mercalli Modificada máxima observada durante el 2018 fue de VI debido al sismo de Golfito del 17 de agosto (Mw 6,2) y a otro sismo de la misma secuencia ocurrido el 9 de noviembre (Mw 5,9).]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  During 2018 the National Seismological Network (RSN: UCR-ICE) located 3233 earthquakes. From the total located events, 285 (~9%) were felt earthquakes, including four significant events with magnitudes Mw between 5.7 and 6.2. The majority (91%) of the felt earthquakes were shallow (&lt; 30 km) and 64 % had low magnitudes (Mw &lt; 3.9). Local and regional faulting caused 64 % of the felt earthquakes, 34 % were associated to the subduction of the Cocos Plate and only three events due to the Panama Fracture Zone. The geographic areas with the highest seismicity were located near the Tenorio volcano, between Cartago and Tarrazu, and the Dulce Gulf. The highest observed Modified Mercalli intensity was VI, caused by the Golfito (6.2 Mw) earthquake on August 17 and by an earthquake on November 9 (5.9 Mw), associated with the same seismic activity.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[sismicidad]]></kwd>
<kwd lng="es"><![CDATA[escala de intensidad Mercalli Modificada (IMM)]]></kwd>
<kwd lng="es"><![CDATA[magnitud momento (Mw)]]></kwd>
<kwd lng="es"><![CDATA[subducción.]]></kwd>
<kwd lng="en"><![CDATA[Seismic activity]]></kwd>
<kwd lng="en"><![CDATA[Modified Mercalli Intensity (MMI)]]></kwd>
<kwd lng="en"><![CDATA[Moment Magnitude (Mw)]]></kwd>
<kwd lng="en"><![CDATA[Subduction]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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