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| The summit of Mauna Kea appears above the northeast rift zone of Mauna Loa, 53 km north-northeast of HVO. Mauna Kea's summit is formed by several cinder cones and surmounted by some of the world's most powerful astronomical telescopes (white domes in photograph). The most recent eruption of Mauna Kea was about 4,000 years ago. |
