1575 Valdivia earthquake
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The 1575 Valdivia earthquake was an earthquake in Chile that caused the subsequent flood of Valdivia much like the 1960 Valdivia earthquake caused the ensuing Riñihuazo flooding. It occurred on March 17, 1575.
The magnitude of this earthquake was 8.5 and the epicenter was approximately 39.8°′″S, 73.2°′″W.