Rare roll cloud phenomenon advances over the ocean like a giant wave, captivating onlookers and spreading rapidly online.

Mainland Portugal faces a heatwave with temperatures reaching 42°C. A rare roll cloud surprised sunbathers on beaches, while ...

A rare roll cloud stunned beachgoers in Portugal as it swept across the sky during a heatwave. Watch the breathtaking moment.

The dinosaur-killing asteroid that slammed into Earth 66 million years ago also triggered a jumbo-size tsunami with mile-high waves in the Gulf of Mexico whose waters traveled halfway around the ...

Evidence of the Storegga tsunami has been found in Norway, England, Denmark, Greenland, and Scotland, including the Shetland Islands. Around the mainland of the UK, waves may have reached 10 to 20 ...

A massive landslide triggered by climate change unleashed a 650-foot “mega-tsunami” that caused Earth to vibrate for nine days. The seismic event in a remote part of Greenland last September ...

A tsunami is a series of extremely long ocean waves created by a sudden change in the Earth's crust, usually an earthquake or underwater landslide, that can strike land with devastating force.

In 1958, a remote bay in Alaska witnessed the tallest tsunami ever recorded—a jaw-dropping 1,720 feet high. Triggered by a ...

A rare "roll cloud" phenomenon resembling a tsunami startled beachgoers in Portugal, triggering strong winds. What is this ...

The giant tsunami, along with smaller waves created by debris falling from the sky, also propagated across the Atlantic, reaching Europe 24 hours later. At that time in the Earth's history, ...

Melting glaciers could trigger megatsunamis with 100m-tall waves, scientists warn. Researchers analysed one such case of a giant tsunami that unleashed destruction in remote parts of eastern ...

SOUTH HAVEN, Mich. (WOOD) — Dense fog on Lake Michigan Wednesday set the scene for a stunning display — a giant fog wave as a storm approached from the south. Above is a portion of the fog ...