Thursday marks the 20 th anniversary of the 2004 Indian Ocean tsunami, one of the deadliest natural disasters in modern history. The Boxing Day quake was one of the largest ever recorded.

People attend a prayer at the Siron mass grave, one of the two major mass burial sites where victims of the 2004 Indian Ocean tsunami were laid to rest, in Banda Aceh, Indonesia, on Dec. 26, 2024.

A relative of a victim of a 2004 Indian Ocean tsunami participates in its 20th anniversary at Tsunami Memorial Park at Ban Nam Khem, Takuapa district of Phang Nga province, southern Thailand ...

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.

A relative of a victim of a 2004 Indian Ocean tsunami offers flowers during its 20th anniversary at Tsunami Memorial Park at Ban Nam Khem, Takuapa district of Phang Nga province, southern Thailand ...

Trauma lingers on for survivors of the deadly 2004 Indian Ocean tsunami. ... Along Thailand's Andaman coast, at least 5,400 people were killed and some 3,000 remain missing to this day, ...

The tsunami claimed the lives of over 8,000 people in Thailand. Many remain missing and nearly 400 bodies are unclaimed to this day. Mourners shed tears and comforted each other as they laid ...

Ban Nam Khem was devastated by the Indian Ocean tsunami that hit on Boxing Day in 2004, triggered by a 9.1 magnitude quake off the coast of Indonesia's Aceh province, killing some 230,000 people ...

A relative of a victim of a 2004 Indian Ocean tsunami participates in its 20th anniversary at Tsunami Memorial Park at Ban Nam Khem, Takuapa district of Phang Nga province, southern Thailand ...