m (13,680 ft) above sea level, totalling over 9,000 m (> 30,000 ft). Mauna Loa is about 36 m (120 ft) lower than its neighbor, Mauna Kea . Earth's third largest volcano is, of course, our own Mount Teide here on Tenerife, which stands 3,717 m (12,195 ft) above sea level and