According to tradition, during the quake of 1766 the earth moved in simple horizontal waves; only on the fatal day of the 14th of December did the earth rise up. More than four fifths of the city was completely destroyed, and the shock, accompanied by a loud subterranean noise, resembled the explosion of a mine placed deep in the ground. Fortunately the main shocks were preceded by light undulations thanks to which most of the inhabitants were able to reach the streets, and only a few who hid in the church died. It is generally believed in Cumana that the worst earthquakes are preceded by weak oscillations in the ground, and by a humming that does not escape the notice of those used to this phenomenon. In those desperate moments you heard people everywhere shouting 'Misericordia! Tiembla! Tiembla! ('Mercy! The earth is trembling!') The most faint- hearted attentively observe the dogs, goats and pigs. These last, with their acute sense of smell, and skill in poking around in the earth, give warnings of approaching dangers with frightened screams.