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The Arraiolos – Portugal – Moderate-Sized 2018 (M = 4.9) earthquake of January 15 and aftershocks: preliminary results

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dc.contributor.authorBorges, José
dc.contributor.authorCaldeira, Bento
dc.contributor.authorFontiela, João
dc.contributor.authorCustódio, Susana
dc.contributor.authorDias, Nuno
dc.contributor.authorWaschilala, Piedade
dc.contributor.authorOliveira, Rui
dc.contributor.authorVales, Dina
dc.contributor.authorBezzeghoud, Mourad
dc.contributor.authorAraújo, Alexandre
dc.contributor.authorCarrilho, Fernando
dc.contributor.authorCorela, Carlos
dc.contributor.authorRio, Inês
dc.contributor.authorVaz, José
dc.contributor.authorMatias, Luís
dc.date.accessioned2018-10-22T10:30:50Z
dc.date.available2018-10-22T10:30:50Z
dc.date.issued2018-09
dc.description.abstractOn 15 January 2018 at 11:51 UTC, an earthquake of 4.9 ML occurred in the Northeast of Arraiolos region near Aldeia da Serra village. The hypocentral location, determined by Instituto Português do Mar e da Atmosfera (IPMA), has coordinates 38.79 N, 7.93 W at 11 km depth. The focal mechanisms determined by P-wave first motion polarities and waveforms inversion indicate a dominance of strike-slip events with nodal plans near NS (left lateral) and EW (right lateral) directions. Due to the lower magnitude, the earthquake didn’t cause damage but was widely felt in the Centre and South of Portugal mainland. In the vicinity of the epicentre, at the Aldeia da Serra village, it reached a maximum intensity VI, having been felt with intensity IV/V in the city of Évora, about 20 km from the epicentre. The event was also felt with intensity III in Lisbon at more than 100 km from the epicentre. This event caused alarm in the population that haven’t felt an earthquake for several decades. It also raised the media attention with many reports and interviews on TV and newspapers. The main ear thquake was immediatel y followed by a sequence of aftershocks of which the largest one, with ML=3.1, occurred the 1st February, fifteen days after the main shock and was largely felt by the population in the region of Arraiolos.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBORGES, José; [et al] – The Arraiolos – Portugal – Moderate-Sized 2018 (M = 4.9) earthquake of January 15 and aftershocks: preliminary results. In 36th General Assembly of the European Seismological Commission, 2018pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/8954
dc.language.isoengpt_PT
dc.relationPOCI-01-0145-FEDER-007690pt_PT
dc.relationMITMOTION - Ground motion prediction in Mitidja Basin - Alger
dc.subjectEarthquakept_PT
dc.subjectAldeia da Serrapt_PT
dc.titleThe Arraiolos – Portugal – Moderate-Sized 2018 (M = 4.9) earthquake of January 15 and aftershocks: preliminary resultspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleMITMOTION - Ground motion prediction in Mitidja Basin - Alger
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FGEO%2F04683%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PT-DZ%2F0003%2F2015/PT
oaire.citation.conferencePlace2-7 September 2018 – Valletta, Maltapt_PT
oaire.citation.title36th General Assembly of the European Seismological Commissionpt_PT
oaire.fundingStream5876
oaire.fundingStream3599-PPCDT
person.familyNameDias
person.givenNameNuno
person.identifier1348964
person.identifier.ciencia-idDB10-5086-2205
person.identifier.orcid0000-0001-7672-4476
person.identifier.ridB-2778-2008
person.identifier.scopus-author-id56640885300
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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