During the Great Chilean earthquake a landslide near the Tralcan Mount dammed the Riñihue Lake. As the water levels of Riñihue rose more than 20 meters, the dam was in danger of breaking and flooding everything downstream, including the city of Valdivia.
A devastating earthquake in Chile triggered a landslide that obstructed the Riñihue Lake, resulting in a significant rise in water levels – over 20 meters. As a result, the dam was on the verge of collapse, threatening to inundate the city of Valdivia and surrounding areas.