The name of the largest volcano on Earth is Mauna Loa, located on the Big Island of Hawaii. Mauna Loa is a shield volcano, characterized by its broad, gently sloping profiles formed by the eruption of low-viscosity lava. It rises about 13,681 feet (4,170 meters) above sea level, but when measured from its base on the ocean floor, it reaches more than 30,000 feet (9,144 meters), making it the world's largest volcano by volume and area. Mauna Loa is an active volcano, with its last eruption occurring in 2022, reminding scientists and residents of the dynamic geological processes at play beneath the surface.