Yemen has issued a tsunami alert for areas located on its south-eastern coast after a powerful earthquake struck in the Gulf of Aden on Saturday. The alert was issued as a precautionary move and that the possibility of a tsunami was small, officials said.An earthquake with magnitude 6.3 on the Richter scale struck the Gulf of Aden Saturday, off the coast of southeast Yemen. There were no reports of casualties or damage as Sunni Muslims celebrated the first day of the most important holiday on the Islamic calendar. The quake occurred at a depth of 10 kilometers, at 11:30 a.m. local time (0830 GMT), but it was not felt by people in Aden, Yemen's southern port city. Earthquakes are rarely felt in Yemen, however a temblor in 1982 caused serious damage.