Gemological faux pas aside, Leahi is technically termed a tuff cone by vulcanologists. It’s thought to have originated 400,000 to 500,000 years ago “in a series of explosive blasts after ...

Diamond Head s cone is a perfect example of a tuff cone. Unlike other forms of volcano cones, a tuff cone forms when super-heated water causes lava to burst into clouds of ash.

Check out this insane knockout finish at Tuff-N-Uff 143 on Friday night (April 25, 2025) from inside Palms Casino Resort in Las Vegas, Nevada.

Lēʻahi (Diamond Head) is a volcanic tuff cone, and it’s a famous landmark in Waikīkī. The volcanic hike offers a historic hiking trail leading to stunning panoramic views of the Pacific ...

The tuff is mostly ash (from the eruption about 300,000 years ago that resulted in the Diamond Head crater) cemented with calcite, she said.

At Tuff-N-Uff 143, O'Shay Jordan (3-2) smashed Mark Currier (3-6) with a powerful left head kick in the third round of their heavyweight tilt at Palms Casino in Las Vegas.

The trail itself, carved out of this old volcanic tuff cone was created over a hundred years ago, as the military built fortifications from Pearl Harbor to Diamond Head.