| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2011/08/28 | 14:23:16.2 | 18:53:16.2 | 34.74 | 52.45 | 14 | ML:4.1 | Semnan Province, 54 km South-East of Garmsar | ||
| 2011/08/18 | 16:15:58.9 | 20:45:58.9 | 35.44 | 53.16 | 18 | ML:2.9 | Semnan Province, 26 km South-West of Semnan | ||
| 2011/08/11 | 02:59:08.6 | 07:29:08.6 | 34.44 | 52.5 | 17 | ML:3.5 | Semnan Province, 88 km South-East of Garmsar |