Sismicidad de Chile.

  • R. Madariaga

Abstract

Seismic activity in continental Chile from Anca to Chiloé is a consequence of tite subduction of the Nazca plate under the plate of South Amenca. We can distinguish four types of seismicity: zone outside the tnench, zone of contact between plates, zone of extension in the interior of the Nazca plate and shocks with depth greater titan 40 km. The most damaging earthquakes are titose of very large magnitude in the subduction zone reaching M = 9. Also these are important earthquakes of intermediate depth inside tite Nazca plate that may have magnitudes larger than M = 8. The rupture process of two large earthquakes, 3 March 1985 in La Ligua and 3OJuly 1995 in Antofagasta have been studied in detail. Two seismic gaps in northern Chile between Anca and Antofagasta that broke in the earthquake of 1877 and another in the south between Constitución y Concepción are studied and discussed. 1.

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Published
1998-01-01
How to Cite
Madariaga R. (1998). Sismicidad de Chile. Física de la Tierra, 10, 221. https://revistas.ucm.es/index.php/FITE/article/view/FITE9898110221A
Issue
No. 10 (1998)
Section
Articles

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