Which volcano is the largest by volume on Earth?

Mauna Loa, on the Big Island of Hawaii, is generally considered the largest volcano on Earth by volume and surface area covered. It rises about 9 kilometers from the ocean floor, although only about 4,170 meters are above sea level. The volcano’s massive shield shape reflects the fluid basaltic lava that has built it up over time. Its eruptions are usually effusive rather than highly explosive, producing extensive lava flows. Mauna Loa last erupted in 2022, showing that it remains an active and closely watched volcano.