With better technology, we could further shorten the time between an earthquake and when the tsunami warning goes out.

The brunt of the tsunami was felt in the Indonesian province of Aceh, where 170,000 people perished. Sri Lanka, India and ...

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

He said all he could see was "white water and chaos". "I leapt out of bed to the window to see a great wall of white water, ...

Under the shade of trees at a mass grave in Indonesia's Aceh province, survivors and mourners recited Islamic prayers, ...

Just as we pulled out from the harbour, the boat lurched and suddenly the jetty next to where we had boarded crumpled and ...

Qurrata Ayuni, a 28-year-old survivor of the earthquake and tsunami that devastated her hometown two decades ago, has ...

The boy once known as “Baby 81,” who was pulled from the mud as an infant after the devastating Indian Ocean tsunami in 2004 ...

Traumatised by the Indian Ocean tsunami that hit Indonesia 20 years ago, Teuku Hafid Hududillah has spent his adult life ...

Trauma still lingers on for survivors of the deadly tsunami that hit Thailand 20 years ago. The Indian Ocean tsunami struck a ...

Authorities in the French overseas territory of Mayotte could still confirm only 31 deaths on Wednesday from Cyclone Chido, ...

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