| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2011/10/23 | 01:36:10.2 | 05:06:10.2 | 37.21 | 54.47 | 14 | ML:3 | Golestan Province, 22 km North of Aq Qaleh | ||
| 2011/10/03 | 04:53:20.0 | 08:23:20.0 | 35.92 | 53.23 | 14 | ML:2.9 | Semnan Province, 26 km South-East of Pol-E-Sefid | ||
| 2011/10/02 | 02:06:45.5 | 05:36:45.5 | 36.85 | 54.24 | 15 | ML:2.9 | Golestan Province, 13 km East of Kordkuy |