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dc.contributor.author Pereira Neto, Francisco António
dc.contributor.author Sand França, George
dc.contributor.author Condori Quispe, Cristobal
dc.contributor.author Sant’Anna Marotta, Giuliano
dc.contributor.author Chimpliganond, Cristiano Naibert
dc.coverage.spatial Angola
dc.date.accessioned 2018-09-25T13:10:20Z
dc.date.available 2018-09-25T13:10:20Z
dc.date.issued 2018-05
dc.identifier.citation Pereira, F. A., Sand, G.,Condori, C., Sant’Anna, G., & Chimpliganond, C. N. (2018). Angola seismicity.==$Journal of Seismology, 22,$==1113–1126. https://doi.org/10.1007/s10950-018-9754-9 es_ES
dc.identifier.govdoc index-oti2018
dc.identifier.uri http://hdl.handle.net/20.500.12816/3063
dc.description.abstract This work describes the development of the Angolan earthquake catalog and seismicity distribution in the Southwestern African Plate, in Angola. This region is one of the least seismically active, even for stable continental regions (SCRs) in the world. The maximum known earthquake had a magnitude of 6.0 Ms, while events with magnitudes of 4.5 have return period of about 10 years. Events with magnitude 5 and above occur with return period of about 20 years. Five seismic zones can be confirmed in Angola, within and along craton edges and in the sedimentary basins including offshore. Overall, the exposed cratonic regions tend to have more earthquakes compared to other regions such as sedimentary basins. Earthquakes tend to occur in Archaic rocks, especially inside preexisting weakness zones and in tectonic-magmatic reactivation zones of Mesozoic and Meso-Cenozoic, associated with the installation of a wide variety of intrusive rocks, strongly marked by intense tectonism. This fact can be explained by the models of preexisting weakness zones and stress concentration near intersecting structures. The Angolan passive margin is also a new region where seismic activity occurs. Although clear differences are found between different areas along the passive margin, in the middle near Porto Amboim city, seismic activity is more frequent compared with northwestern and southwestern regions. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Springer Verlag es_ES
dc.relation.ispartof urn:issn:1383-4649
dc.rights info:eu-repo/semantics/closedAccess es_ES
dc.subject Intraplate es_ES
dc.subject Sedimentary basin es_ES
dc.subject Angola earthquakes es_ES
dc.subject Stable continental regions es_ES
dc.title Angola seismicity es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#1.05.00 es_ES
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#1.05.04 es_ES
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#1.05.06 es_ES
dc.identifier.journal Journal of Seismology es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi https://doi.org/10.1007/s10950-018-9754-9 es_ES

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