Tremors measuring 6.4 and 6.3 magnitude destroy six villages and injure about 1,300 people, according to officialsTwo strong earthquakes have killed 180 people and injured another 1,300 in northwest Iran where rescuers frantically combed through the rubble of dozens of villages on Saturday night.Thousands fled their homes and remained outdoors after the quakes, as at least 20 aftershocks hit the a