The strongest aftershock was 4.8 on Richter scale and the mildest 2.6.

The first tremor occurred at 16:53 hours local time ( 13:23 hours GMT) in Ahar city with 6.2 magnitude and then at 17:04 hours ( 13:34 hours GMT) with 6.0 Richter scale in Varzagan.

According to the latest figures released by provincial coronery, the death toll is 138 and more than 700 persons have been wounded.