Following a 1949 event, the next major eruption at Mauna Loa occurred in 1950. Originating from the volcano's southwestern rift zone, the eruption remains the largest rift event in the volcano's modern history, lasting 23 days, emitting 376 million cubic meters of lava, and reaching the ocean within 3 hours. The 1950 eruption was not the most voluminous eruption on the volcano (the long-lived 1872–1877 event produced more than twice as much material), but it was easily one of the fastest-acting, producing the same amount of lava as the 1859 eruption in a tenth of the time. Flows overtook the village of Hoʻokena-mauka in South Kona, crossed Hawaii Route 11, and reached the sea within four hours of eruption. Although there was no loss of life, the village was permanently destroyed. After the 1950 event, Mauna Loa entered an extended period of dormancy, interrupted only by a small single-day summit event in 1975. However, it rumbled to life again in 1984, manifesting first at Mauna Loa's summit, and then producing a narrow, channelized ʻaʻā flow that advanced downslope within of Hilo, close enough to illuminate the city at nighttime. However, the flow got no closer, as two natural levees further up its pathway consequently broke and diverted active flows.