Kaʻau

Kaʻau The Kaʻau tuff and basalt flows were erupted during a high stand of the sea (probably during plus 95-foot (Kaʻena) stand of sea) (about 1-million years ago - a ‘youthful’ volcanic outburst.) Over half of the craters of southeast Oʻahu are arranged in linear groups: Tantalus, Diamond Head and Koko Crater. Kaʻau is an extension of this line of craters up into the Koʻolau range.

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