Hualalai (pronounced in Hawaiian) is a dormant volcano on the island of Hawaii in the Hawaiian Islands. It is the third-youngest and the third most active of the five shield volcanoes that form the island of Hawaii, following Kilauea and the much larger Mauna Loa, and also the westernmost. Its peak is above sea level. Hualalai is estimated to have risen above sea level about 300,000 years ago. Despite maintaining a very low level of activity since its last eruption in 1801, Hualalai is still considered active, and is expected to erupt again some time within the next century. The relative unpreparedness of the residents in the area caused by the lull in activity would worsen the consequences of such an event.