Thomas Jaggar examines a 12 ton block ejected from Halemaumau onto ...
Detailed Description
Thomas A. Jaggar, Jr., long time director of HVO, was on the mainland at the beginning the 1924 eruption and returned to HVO a few days after the explosions ended. Jaggar's absence left only two HVO staff members to monitor this 2 1/2 week long eruption at Kīlauea. Volunteers from the community pitched in to serve as observers at HVO and helped to preserve an excellent round-the-clock record of the crises from beginning to end.