On February 19, 1965 a non-eruptive landslide of ice and rock caused by unusually heavy summer rains slid rapidly into a narrow gully, descended around 1500 meters in elevation, and crashed into Lake Cabrera below. This triggered a tsunami that thundered across the lake and swept through the lakeside community of Lago Cabrera just moments later. There was virtually no warning and the community was caught by surprise. The entire village was destroyed, killing twenty-seven people. It is considered the worst volcano-related loss of life in Chile since the Villarrica eruptions of 1948-1949. The debris field left behind by the tsunami is still visible today, and the people of nearby Hornopirén commemorate the tragedy every year with a pilgrimage to the site and the memorial chapel.