At the top of a 120-foot-high cliff in Tonga sits a humongous rock—and at more than 650 feet inland, it’s staggeringly out of ...

A massive boulder named Maka Lahi was recently found about 650 feet from the edge of a cliff in Tonga, and researchers ...

The study also found 'natural bioshields' significantly reduce the amount of sediment moved in some locations.

So a tsunami caused by an earthquake probably wasn’t the culprit ... but there’s geological evidence that large waves also ...

As climate change increases the threat of natural disasters, effective tsunami evacuation planning is more vital than ever.

One of the most dangerous fault lines that threatens the United States lurks off the coast of the Pacific Northwest, capable of producing a Pacific-wide tsunami and dramatically changing the landscape ...