The death toll has now risen to 73, including five members of one family.
Thousands of people left homeless are living in makeshift shelters, and there are fears of a Covid outbreak there.
In recent days Indonesia has endured deadly landslides, the loss of a Sriwijaya Air Boeing 737 with 62 people on board, and a volcanic eruption.
Indonesia sits on the Pacific "Ring of Fire" where tectonic plates collide, and the country has a history of devastating earthquakes and tsunamis. More than 2,000 people were killed in a quake in Sulawesi in 2018.
In 2004, a tsunami triggered by an earthquake off the Indonesian island of Sumatra killed 226,000 people across the Indian Ocean, including more than 120,000 in Indonesia.