Cientistas descobrem freios ocultos em terremotos de falhas no Pacífico

Pesquisadores identificaram zonas de barreira naturais em uma falha submarina que agem como freios para impedir que terremotos ganhem proporções maiores. As descobertas vêm de estudos detalhados da falha transformante Gofar, na costa do Equador.

A falha Gofar fica a aproximadamente 1.600 quilômetros a oeste do Equador, onde as placas do Pacífico e de Nazca deslizam uma ao lado da outra. Ela tem produzido terremotos de magnitude 6 quase idênticos a cada cinco ou seis anos há pelo menos três décadas. Durante muito tempo, os cientistas ficaram intrigados sobre o motivo pelo qual os tremores permanecem tão consistentes e limitados em tamanho.

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