A major 7.7 magnitude quake struck off the Indonesian island of Sulawesi on Friday, prompting a tsunami alert hours after a milder quake brought down houses in the same area.
The meteorology and geophysics agency issued an early tsunami warning for people in Central Sulawesi and West Sulawesi provinces, asking people to evacuate to higher ground.
The U.S. Geological Survey put the magnitude of the second quake at a strong 7.5, after first saying it was 7.7
Indonesia sits on the Pacific Ring of Fire and is regularly hit by earthquakes.
