| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2010/10/21 | 06:51:19.0 | 10:21:19.0 | 35.55 | 54.42 | 14 | ML:3.2 | Semnan Province, 69 km South of Damghan | ||
| 2010/10/13 | 13:27:56.9 | 16:57:56.9 | 35.45 | 54.47 | 14 | ML:3.4 | Semnan Province, 81 km South-East of Damghan | ||
| 2010/10/13 | 12:42:44.1 | 16:12:44.1 | 35.49 | 54.47 | 14 | ML:2.8 | Semnan Province, 76 km South-East of Damghan | ||
| 2010/09/25 | 22:55:29.8 | 02:25:29.8 | 35.89 | 53.37 | 14 | ML:3.6 | Semnan Province, 36 km North of Semnan |