| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2012/05/22 | 15:55:55.6 | 20:25:55.6 | 36.73 | 54.62 | 31 | ML:2.5 | Golestan Province, 20 km South-East of Gorgan | ||
| 2012/05/18 | 04:34:45.3 | 09:04:45.3 | 36.21 | 54.32 | 38 | ML:3.1 | Semnan Province, 6 km Damghan | ||
| 2012/05/17 | 23:41:14.8 | 04:11:14.8 | 37.23 | 54.59 | 16 | ML:2.1 | Golestan Province, 27 km North-East of Aq Qaleh | ||
| 2012/05/17 | 12:57:56.9 | 17:27:56.9 | 35.47 | 53.29 | 14 | ML:2.8 | Semnan Province, 14 km West of Semnan | ||
| 2012/05/17 | 07:51:20.6 | 12:21:20.6 | 36.84 | 55.36 | 8 | ML:2.9 | Golestan Province, 27 km South-East of Ramian | ||
| 2012/05/17 | 01:18:57.9 | 05:48:57.9 | 36.52 | 55.48 | 14 | ML:3 | Semnan Province, 47 km North-East of Shahrud |