SISMOTECTÓNICA DE LA REGIÓN CENTRAL DE COSTA RICA
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| Autores: | , |
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| 格式: | artículo original |
| 状态: | Versión publicada |
| Fecha de Publicación: | 2011 |
| 实物特征: | The seismicity and the faulting in an area of 5000 km2 of the central part of Costa Rica between 9.5°-10.3° latitude north and 83.5°-84.5° longitude west were studied. The faults were taken from recient geological mapsof the area, and from the Geologic Map of Costa Rica (1:200,000) specially in areas where detailed studies have notbeen done. Earthquakes that ocurred between 1990-1994 were relocated with a tridimentional crustal model in orderto find the best correlation between the epicenters and the faults. Focal mechanisms were done to characterize thetypes of fault.It was proved that there are two main faulting trends: northwest and northeast. The northwest one is considered themost important because of the extention of the faults and the associates seismicity. Three fault systems were found,one in the southern flank of the Cordillera Volcánica Central, another one in the nortwestern flank of the Cordillerade Talamanca and the last one in the high lands of the Cordillera de Talamanca. Focal mechanisms suggest that mostof the faulting is normal. |
| País: | Portal de Revistas UCR |
| 机构: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| 语言: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/8599 |
| 在线阅读: | https://revistas.ucr.ac.cr/index.php/geologica/article/view/8599 |
| Access Level: | acceso abierto |