Here are some things to know about tsunamis: A tsunami, a word that comes from the Japanese characters for harbor and wave, is a series of extremely long waves caused by the sudden displacement of ...

People are gathering in prayer and visiting mass graves in Indonesia’s Aceh province to mark 20 years since the massive ...

People have gathered in prayer and visited mass graves in Indonesia's Aceh province to mark the 20th anniversary of the massive Indian Ocean tsunami, one of modern history's worst natural disasters.

Because the ABC Emergency Alerts system relies entirely on information published by emergency agencies, despite the best efforts of those agencies, the ABC cannot guarantee that this information will ...

It’s been 20 years since the devastating Indian Ocean earthquake and tsunami, which claimed tens of thousands of lives. The ...

Because the ABC Emergency Alerts system relies entirely on information published by emergency agencies, despite the best efforts of those agencies, the ABC cannot guarantee that this information will ...

The world's deadliest tsunami hit nations around the Indian Ocean two decades ago before social media platforms flourished, ...

Here is a look at tsunamis. Tsunamis are formed by a displacement of water – a landslide, earthquake, volcanic eruption, or slippage of the boundary between two of the earth’s tectonic plates – slabs ...

ABC News’ Diane Sawyer interviewed Nemcova in the months after the tragedy. Now, 20 years after one of the deadliest natural ...

Two decades after a devastating tsunami swept across Southeast Asia, Petra Nemcova is recalling what, and who, helped her ...

“The government needs to implement the plan quickly — every new structure in Siargao should go above and beyond the building code to withstand super typhoons, earthquakes and tsunamis.” CNN Travel has ...