Mystery continues to shroud the loud explosion heard on Sunday evening in the areas around Dingli and Rabat, and aviation experts have shed doubt on the theory that it may have been caused by an aircraft travelling at supersonic speed. The explosive sound is not thought to have been an earthquake and no aircraft were travelling at supersonic speed at the time. With no explanation yet, the story attracted a barrage of comments on timesofmalta. com where many speculated that the loud noise may have been caused by the sonic boom of a military jet travelling faster than the speed of sound. Read more