Jakarta: Indonesia’s Palu city has been hit by Tsunami, hours after a powerful earthquake measuring 7.5 on the Richter scale rocked country’s Sulawesi island on Friday. “More than 6 feet high tsunami waves hit shoreline of Palu city, several buildings collapsed,” The Strait Times reported. Also Read - Magnitude 6.0 Earthquake Strikes Indonesia's Java, 8 Killed, 23 Injured

Speaking to a news agency, a spokesman for Indonesia’s geophysics agency said,”A powerful earthquake caused a tsunami, apparently after the agency lifted a tsunami warning.” Also Read - Groom Wears Nothing But a Pair of Shorts on Wedding Day, Bride Reveals The Reason Why | See Pics

Earlier in the day, two powerful earthquakes measuring 7.5 and 6.1 had hit the Country. The US Geological Survey said that the quake’s depth was 10 km and the epicentre was situated 56 km northeast of the central Sulawesi town of Donggala. This was the second earthquake to strike the region in a day.  At least one person was killed and 10 others were left injured. Dozens of houses were also collapsed in the tremblor.

At least 557 people died and almost 400,000 were displaced by four earthquakes with intensities varying between magnitude-6.3 and 6.9 which struck Lombok island between July 29 and August 19.

Indonesia’s deadliest ever tremor struck Sumatra island in 2014 and triggered a tsunami that killed nearly 280,000 people in around a dozen countries along the Indian Ocean, with the biggest number of casualties registered in Indonesia.

Indonesia sits on the Pacific Ring of Fire, an area of great seismic and volcanic activities, where some 7,000 earthquakes, mostly moderate, are recorded each year.

(With inputs from agencies)