Here’s how cruise ships are affected by tsunamis, and what protocols the crew follows to keep passengers safe.

In Hawaii, ships were directed out to sea by officials, but some guests who were on shore excursions couldn’t make it back in time to get aboard.

It's chaos." Gonzalez explained that she and other cruise passengers left stranded on the island sheltered at a local high school, where they were given blankets and food. Some people slept on cardboard boxes on the floor,