Indonesia has lifted a tsunami warning but has urged people to remain vigilant and evacuate to higher ground after an earthquake of magnitude 6.8 struck off the coast of its island of Sulawesi.
Indonesia suffered its highest death toll in natural disasters in more than a decade last year, following two major tsunamis and several earthquakes.
More than 3000 were killed in Palu, also in Central Sulawesi, the site of Friday's earthquake.
The geophysics agency lifted the warning around 40 minutes after it was imposed, it said on Twitter.
In the twin quake-and-tsunami tragedy that hit Palu in September last year, high waves hit the shore after the tsunami warning had been lifted. More than 2000 people were killed.
The magnitude of 6.8 quake rocked the region Friday and temporarily triggered a tsunami warning. Source: AAP
There were no immediate reports of damage or casualties from the quake, which hit 280km south of the province of Gorontalo at a depth of 43km, the agency added.
The quake was felt strongly in the nickel mining region of Morowali. Vale, with a nickel smelter, and Donggi-Senoro, with an LNG plant, said operations were running as normal.
Gina Saerang of North Sulawesi's capital Manado said on social media the earthquake was "strong and long lasting".
