By: Julie Moos | Poynter.org
As waves begin coming ashore in Hawaii and parts of the United States touched by the Pacific Ocean prepare for a aftereffects Friday, Japan is reeling from a tsunami and earthquake there that has reportedly killed hundreds. Here is a quick guide to the basics. (See also our social media guide to people worth following for eyewitness reports and curated coverage.)
In the United States and its territories, six tsunamis have killed more than 350 people since 1946, according to the American Red Cross. In the last 204 years, 24 tsunamis have damaged the country.
FEMA says Hawaii gets one tsunami a year, and a damaging one every seven or so years. Every 18 years, California, Oregon and Washington have a damaging tsunami, according to FEMA.