1977 Karachi Floods vs 1985 Nevado del Ruiz

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The Spanish surname Ruiz originates from the Germanic personal name 'Hrodric' which is composed of the elements 'Hrōd', meaning 'renown', and 'rīc', meaning 'power(ful)', thus 'famous ruler'. Ruiz is a patronymic from the personal name Ruy, a short form of Rodrigo, meaning 'son of Roderick'. Its roots can be traced back to the Visigoths, the Germanic tribe which ruled in the Iberian Peninsula between the 5th and 8th centuries.