Indonesian city of Palu has been hit by a tsunami after an earthquake of magnitude 7.7 hit the Indonesian island of Sulawesi on Friday evening. According to local authorities, around 6 feet high waves have hit the region following which several families are missing.Over 350 others have been injured, a disaster agency official said on Saturday after three shallow quakes of 6.0, 7.4 and 6.1-magnitude struck off the central province and triggered the tsunami near Talisa beach of Dongala district.