Dozens of earthquakes rocked the region, but a tsunami didn't seem imminent. Then the massive waves began crashing in.

Trekkers in the Himalayas filmed the dramatic moment a giant wall of snow and ice hurtled towards them at breakneck speed.

The test comes days after President Vladimir V. Putin announced the previous trial of another Russian nuclear weapon.

A 1,000-foot mega tsunami could devastate the US West Coast — and scientists say it's not a matter of if, but when. The ...