Survivors and victims' relatives will this week mark the 20th anniversary of the 2004 Indian Ocean earthquake and tsunami, which killed more than 220,000 people across more than a dozen countries.

On Dec. 26, 2004, a 9.1-magnitude earthquake beneath the Indian Ocean triggered a tsunami with waves up to 100 feet high, killing an estimated 230,000 people. Twenty years later, people gathered ...

Within hours, the tsunami had claimed nearly 230,000 human lives and displaced millions of people in 12 countries. Thursday marks the 20 th anniversary of the 2004 Indian Ocean tsunami ...