Yanawayin Lake
Yanawayin (Quechua yana black, Ancash Quechua wayi house, "black house", -n a suffix, other spellings Yanahuain, Yanahuin, Yanahuni, Yanahuani) is a lake in the central Peruvian Andes. It lies in the Lima Region, Huaral Province, Andamarca District, near the village of Yanawayin (Yanahuain). The lake is situated at an altitude of about . Landslide 
The site made world headlines in 1971 when on March 18 a rock avalanche of  fell from an outcrop of jointed limestone about  above the lake. It created a wave of  that destroyed the Chungar Mine camp on the shore, owned by the Mining Company (Cia Minera Chungar, S.A.), destroyed all the mines' surface facilities, and killed 200–600 miners. See also 
 Willkaqucha

References 

Lakes of Peru
Lakes of Lima Region
Landslides in Peru
Landslides in 1971
1970s tsunamis