Which country experienced the 2018 Sulawesi tsunami?

The 2018 Sulawesi tsunami struck Indonesia on September 28, 2018, after a magnitude 7.5–7.6 earthquake hit Central Sulawesi. The earthquake’s epicenter was in Donggala Regency, near the city of Palu.

The tsunami swept into Palu Bay only minutes after the earthquake, destroying homes, roads, bridges, and coastal neighborhoods. Palu’s position at the end of a narrow bay helped concentrate and amplify the incoming water. The disaster was especially complex because severe ground shaking, tsunami flooding, and widespread soil liquefaction occurred together.

Although the earthquake was largely strike-slip, with sideways movement along the Palu-Koro fault, it still produced a damaging tsunami—an important reason the event is studied by scientists. Waves were reported at several metres in height, and the combined disaster killed an estimated 4,340 people. Papua New Guinea, Japan, and the Philippines are all tsunami-prone countries, but none was the country affected by this event.