View your list of saved words. (You can log in using Facebook.)
Volcano, south-central Hawaii island, Hawaii, U.S. Located in Hawaii Volcanoes National Park, it is one of the world's largest mountain masses. It rises to 13,678 ft (4,169 m) and has a dome 75 mi (120 km) long and 64 mi (103 km) wide. Mokuaweoweo, its pit crater, has an area of nearly 4 sq mi (10 sq km) and a depth of 500–600 ft (150–180 m). It has averaged one eruption every 3.5 years since 1832. Many of its eruptions are confined within Mokuaweoweo; others are from fissures and vents. Its lava flows occupy more than 2,000 sq mi (5,120 sq km) of the island. See alsoKilauea.
This entry comes from Encyclopædia Britannica Concise. For the full entry on Mauna Loa, visit Britannica.com.