Complex sentence: Flows overtook the village of Hoʻokena-mauka in South Kona, crossed Hawaii Route 11, and reached the sea within four hours of eruption, and although there was no loss of life the village was permanently destroyed.
Split into simpler sentences: 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.