Kaula Island, Hawaii
21.65 N, 160.55 W
summit elevation 160 m
Tuff cone on top of a shield volcano
Kaula is a flat-topped shield volcano submerged except for the top 160 m tuff cone.
Kaula volcano was used as a target for arial bombing and contains many unexploded bombs.
Further reading
Bizimis, Michael, et al. "The composition and distribution of the rejuvenated component across the Hawaiian plume: Hf‐Nd‐Sr‐Pb isotope systematics of Kaula lavas and pyroxenite xenoliths." Geochemistry, Geophysics, Geosystems 14.10 (2013): 4458-4478.
Garcia, M.O., Frey, F.A. and Grooms, D.G., 1986. Petrology of volcanic rocks from Kaula Island, Hawaii. Contributions to Mineralogy and Petrology, 94(4), pp.461-471.
4-5 million years ago