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Revista Geológica de América Central
versão On-line ISSN 0256-7024versão impressa ISSN 0256-7024
Resumo
CAMPOS-DURAN, Daniela; QUINTERO-QUINTERO, Ronnie e ABARCA-ROJAS, Tatiana. Valle de La Estrella earthquake: seismic analysis, disaster cascade and update of economic losses in present value (2020). Rev. Geol. Amér. Central [online]. 2021, n.65, pp.169-192. ISSN 0256-7024. http://dx.doi.org/10.15517/rgac.v0i65.47079.
Seismicity and focal mechanisms in the of North Panama Deformed Belt (NPDB) indicate a compressional environment associated with the overthrusting of the Panama Block (PB) on the Caribbean plate; crustal PB strike-slip focal mechanisms are observed in the Talamanca and Central Volcanic Cordillera. The hypocenters reach maximum depths between 50-60 km at the foot of the Talamanca mountain range and are shallow near the Caribbean coast. The 1991, Valle de la Estrella earthquake (Mw 7.6) triggered aftershocks in an area of ~140x70 km; landslides and liquefaction were the secondary events that caused most damage and losses in infrastructure (housing, bridges, railroad network, road network and aqueducts); its effects were concentrated in coastal cities, such as Limón and Bocas del Toro. The economic losses in present 2020 value correspond to $3 433 266 937.41.
Palavras-chave : Earthquake; Limon; 1991; Liquefaction; Landslides; Focal Mechanisms; South Caribbean.