World’s Largest Cliff-Top Boulder Provides Evidence of Ancient Tsunami in Tonga

Locally known as Maka Lahi, meaning ‘Big Rock,’ this boulder was moved more than 200 m inland by a tsunami around 7,000 years ago.

The limestone boulder Maka Lahi. Image credit: Köhler et al., doi: 10.1016/j.margeo.2025.107567.

The Maka…

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