Tsunami

Preparation is key for communities that live in high-risk coastal regions.

The motion of the ocean(ic crust).

The 6,000-year-old remains are still rather mysterious.

Waiting for tsunami warning to pass

The new system analyzes real-time ocean data to see when the killer waves formed

Making waves

The risk of megatsunamis may be slightly greater than expected—but they’re still extremely rare

Don’t call it the great wall of Japan

A tsunami advisory was issued, but has now been cancelled.

When a 7.3-magnitude earthquake struck off Japan's eastern coast early Friday morning, we all feared a tsunami. But San Francisco gets earthquakes all the time, and we're not scared of a tsunami there. Why?