The Whitney Seismograph Vault #29 is an underground room, 18 feet by 17.5 feet of reinforced concrete walls and reinforced concrete slab roof. Walls and floor are in direct contact with natural steam cracks, making the room hot and humid. The Whitney Seismograph Vault #29 represents the beginnings of the continuous and resident study by American scientists of the earth’s volcanic and seismic activity at Kilauea and Mauna Loa volcanoes.
This list of Hawaii’s historic properties is provided as a public service by Historic Hawaii Foundation. It is not the official list of properties designated on the Hawaii State Register of Historic Places. For official designations and determinations of eligibility, contact the State Historic Preservation Division of the Department of Land and Natural Resources of the State of Hawaii at 808-692-8015.