SISMOS HISTÓRICOS Y RECIENTES EN MAGALLANES HISTORICAL AND RECENT EARTHQUAKES IN MAGALLANES
Terremotos en Magallanes, al sur de Chile, están asociados a movimientos relativos (menores que 2 cm./año) de tres placas: Sudamericana, Antártica y Scotia. Por lo tanto, la sismicidad es más baja comparada con la del norte de Chile, donde las placas de Nazca y Sudamericana convergen a razón de 10 c...
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ftdoajarticles:oai:doaj.org/article:c36caa38047f4a70af159211c8117596 2023-05-15T13:52:40+02:00 SISMOS HISTÓRICOS Y RECIENTES EN MAGALLANES HISTORICAL AND RECENT EARTHQUAKES IN MAGALLANES ARMANDO CISTERNAS EMILIO VERA 2008-06-01T00:00:00Z https://doaj.org/article/c36caa38047f4a70af159211c8117596 ES spa Universidad de Magallanes http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-22442008000100004 https://doaj.org/toc/0718-0209 https://doaj.org/toc/0718-2244 0718-0209 0718-2244 https://doaj.org/article/c36caa38047f4a70af159211c8117596 Magallania, Vol 36, Iss 1, Pp 43-51 (2008) Magallanes Placas tectónicas Sismicidad Volcanes Tectonic plates Seismicity Volcanoes History of scholarship and learning. The humanities AZ20-999 Anthropology GN1-890 Social sciences (General) H1-99 article 2008 ftdoajarticles 2022-12-31T00:43:09Z Terremotos en Magallanes, al sur de Chile, están asociados a movimientos relativos (menores que 2 cm./año) de tres placas: Sudamericana, Antártica y Scotia. Por lo tanto, la sismicidad es más baja comparada con la del norte de Chile, donde las placas de Nazca y Sudamericana convergen a razón de 10 cm./año aproximadamente. En Magallanes, sin embargo, dos importantes (M L = 7.5) terremotos históricos ocurrieron en 1879 y 1949. Sismicidad reciente, registrada en 1997 y 1998, de magnitud menor que M L = 4.3, ha ocurrido dentro de la corteza continental. Algunos terremotos muy superficiales se concentran alrededor de dos volcanes activos: Reclus y Burney. Se incluyen también breves descripciones del enjambre sísmico de 2007 en Aysén, y de la erupción del volcán Chaitén en 2008. Earthquakes in Magallanes, southern Chile, are associated to the relative motions (smaller than 2 cm./y) of three plates: South-American, Antarctic and Scotia. Thus, the seismicity is low as compared with northern Chile where the Nazca and South-American plates converge at a rate of about 10 cm./y. In Magallanes however, two main historical earthquakes (M L = 7.5) occurred in 1879 and 1949. Recent seismicity, registered in 1997 and 1998, of magnitude smaller than 4.3 is located within the continental crust. Some very shallow earthquakes concentrate around two active volcanoes: Reclus and Burney. Short descriptions of the 2007 seismic cluster in Aysén and the 2008 eruption of the Chaitén volcano are also included. Article in Journal/Newspaper Antarc* Antarctic Antártica Directory of Open Access Journals: DOAJ Articles Antarctic Baja Magallanes ENVELOPE(-62.933,-62.933,-64.883,-64.883) Reclus ENVELOPE(-61.783,-61.783,-64.567,-64.567) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Spanish |
topic |
Magallanes Placas tectónicas Sismicidad Volcanes Tectonic plates Seismicity Volcanoes History of scholarship and learning. The humanities AZ20-999 Anthropology GN1-890 Social sciences (General) H1-99 |
spellingShingle |
Magallanes Placas tectónicas Sismicidad Volcanes Tectonic plates Seismicity Volcanoes History of scholarship and learning. The humanities AZ20-999 Anthropology GN1-890 Social sciences (General) H1-99 ARMANDO CISTERNAS EMILIO VERA SISMOS HISTÓRICOS Y RECIENTES EN MAGALLANES HISTORICAL AND RECENT EARTHQUAKES IN MAGALLANES |
topic_facet |
Magallanes Placas tectónicas Sismicidad Volcanes Tectonic plates Seismicity Volcanoes History of scholarship and learning. The humanities AZ20-999 Anthropology GN1-890 Social sciences (General) H1-99 |
description |
Terremotos en Magallanes, al sur de Chile, están asociados a movimientos relativos (menores que 2 cm./año) de tres placas: Sudamericana, Antártica y Scotia. Por lo tanto, la sismicidad es más baja comparada con la del norte de Chile, donde las placas de Nazca y Sudamericana convergen a razón de 10 cm./año aproximadamente. En Magallanes, sin embargo, dos importantes (M L = 7.5) terremotos históricos ocurrieron en 1879 y 1949. Sismicidad reciente, registrada en 1997 y 1998, de magnitud menor que M L = 4.3, ha ocurrido dentro de la corteza continental. Algunos terremotos muy superficiales se concentran alrededor de dos volcanes activos: Reclus y Burney. Se incluyen también breves descripciones del enjambre sísmico de 2007 en Aysén, y de la erupción del volcán Chaitén en 2008. Earthquakes in Magallanes, southern Chile, are associated to the relative motions (smaller than 2 cm./y) of three plates: South-American, Antarctic and Scotia. Thus, the seismicity is low as compared with northern Chile where the Nazca and South-American plates converge at a rate of about 10 cm./y. In Magallanes however, two main historical earthquakes (M L = 7.5) occurred in 1879 and 1949. Recent seismicity, registered in 1997 and 1998, of magnitude smaller than 4.3 is located within the continental crust. Some very shallow earthquakes concentrate around two active volcanoes: Reclus and Burney. Short descriptions of the 2007 seismic cluster in Aysén and the 2008 eruption of the Chaitén volcano are also included. |
format |
Article in Journal/Newspaper |
author |
ARMANDO CISTERNAS EMILIO VERA |
author_facet |
ARMANDO CISTERNAS EMILIO VERA |
author_sort |
ARMANDO CISTERNAS |
title |
SISMOS HISTÓRICOS Y RECIENTES EN MAGALLANES HISTORICAL AND RECENT EARTHQUAKES IN MAGALLANES |
title_short |
SISMOS HISTÓRICOS Y RECIENTES EN MAGALLANES HISTORICAL AND RECENT EARTHQUAKES IN MAGALLANES |
title_full |
SISMOS HISTÓRICOS Y RECIENTES EN MAGALLANES HISTORICAL AND RECENT EARTHQUAKES IN MAGALLANES |
title_fullStr |
SISMOS HISTÓRICOS Y RECIENTES EN MAGALLANES HISTORICAL AND RECENT EARTHQUAKES IN MAGALLANES |
title_full_unstemmed |
SISMOS HISTÓRICOS Y RECIENTES EN MAGALLANES HISTORICAL AND RECENT EARTHQUAKES IN MAGALLANES |
title_sort |
sismos históricos y recientes en magallanes historical and recent earthquakes in magallanes |
publisher |
Universidad de Magallanes |
publishDate |
2008 |
url |
https://doaj.org/article/c36caa38047f4a70af159211c8117596 |
long_lat |
ENVELOPE(-62.933,-62.933,-64.883,-64.883) ENVELOPE(-61.783,-61.783,-64.567,-64.567) |
geographic |
Antarctic Baja Magallanes Reclus |
geographic_facet |
Antarctic Baja Magallanes Reclus |
genre |
Antarc* Antarctic Antártica |
genre_facet |
Antarc* Antarctic Antártica |
op_source |
Magallania, Vol 36, Iss 1, Pp 43-51 (2008) |
op_relation |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-22442008000100004 https://doaj.org/toc/0718-0209 https://doaj.org/toc/0718-2244 0718-0209 0718-2244 https://doaj.org/article/c36caa38047f4a70af159211c8117596 |
_version_ |
1766257101582106624 |