A massive, cliff-top boulder in Tonga reveals a 7,000-year-old mega tsunami, offering new insights for coastal hazard ...

The hulking rock, called Maka Lahi, is the size of a two-story house and sits on a 120-foot-tall cliff, covered in vegetation ...

In order to move the “exceptional” and massive rock, the tsunami was likely around 164-feet tall — the height of the Arc de Triomphe.

May 1, 2025 — A new study has investigated the use of a new monitoring technique for early warning of a volcanic eruption. The research team compared the earthquake signals during two eruptions ...