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Possíveis causas dos sismos dos Açores

Authors: Machado, Frederico;

Possíveis causas dos sismos dos Açores

Abstract

Os abalos sísmicos dos Açores dependem certamente do mecanismo que faz mover as três placas litosféricas que existem na área destas ilhas. Um modelo de mecanismo que parece, adequado para explicar o ritmo das crises sísmicas baseia-se em pulsações de gravitação. Entre as principais perturbações neste ritmo figuram as marés terrestres (especialmente a semi-anual) e as variações de energia elástica disponível, devidas à própria fraturação que produz os abalos.

ABSTRACT: The earthquakes of the Azores are supposed to result film movement predicted by the Theory, of Plate Tectonics. Gravitational pulsations seem to be an adequate mechanism for explaining the rhythm of earthquake swarms. Some perturbation on the occurrence of the seismic swarm is probably due to Earth tides (mainly the solar semi-annual one) and to change in the available strain energy, produced by the fracturing associated with the swarms.

Country
Portugal
Related Organizations
Keywords

Tectónica de Placas, Sismologia, Açores

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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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