The Rapel Dam is an arch dam on the Rapel River about 19 km (12 mi) north of La Estrella in the Libertador General Bernardo O'Higgins Region, Chile. The primary purpose of the dam is hydroelectric power generation and it supports a 377 MW power station. The dam was completed in 1968 and is owned by Endesa. It creates the largest reservoir in Chile with a capacity of 700,000,000 m3 (567,499 acre⋅ft). The dam withstood the 7.5 Mw 1985 Rapel Lake earthquake with only minor damage. It was centered 45 km (28 mi) from the dam.