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1575 Valdivia earthquake

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Magnitude  8.5
Date  16 December 1575
Areas affected  Valdivia, Chile
1575 Valdivia earthquake
Similar  1922 Vallenar earthquake, 1868 Arica earthquake, 1647 Santiago earthquake, 1985 Algarrobo earthquake, 2007 Tocopilla earthquake

The 1575 Valdivia earthquake occurred at 14:30 local time on December 16. It had an estimated magnitude of 8.5 on the surface wave magnitude scale and led to the flood of Valdivia, Chile.

Pedro Mariño de Lobera, who was corregidor of Valdivia by that time, wrote that the waters of the river opened like the Red Sea, one part flowing upstream and one downstream. Mariño de Lobera also evacuated the city until the dam at Laguna de Anigua (nowadays Riñihue Lake) burst. At that moment he wrote that, while many Indians died, no Spaniards did, as the settlement of Valdivia was moved temporarily away from the riverside.

The effects of this earthquake are similar to the 1960 Valdivia earthquake that also caused ensuing Riñihuazo flooding. These similarities show that large earthquakes have a pattern that span over several centuries.


1575 Valdivia earthquake Wikipedia

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