| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2011/12/23 | 19:35:16.3 | 23:05:16.3 | 35.15 | 53.16 | 15 | ML:3.7 | Semnan Province, 51 km South-West of Semnan | ||
| 2011/12/23 | 16:49:23.6 | 20:19:23.6 | 36.63 | 52.25 | 17 | ML:2.8 | Mazandaran Province, 2 km Mahmud Abad | ||
| 2011/12/12 | 00:24:53.9 | 03:54:53.9 | 36.02 | 53.41 | 14 | ML:2.8 | Semnan Province, 33 km East of Pol-E-Sefid | ||
| 2011/12/09 | 18:08:55.8 | 21:38:55.8 | 35.93 | 53.13 | 18 | ML:3.2 | Mazandaran Province, 22 km South of Pol-E-Sefid | ||
| 2011/12/09 | 02:25:00.5 | 05:55:00.5 | 35.71 | 51.96 | 23 | ML:2.7 | Tehran Province, 10 km West of Damavand | ||
| 2011/12/04 | 07:26:55.5 | 10:56:55.5 | 35.71 | 52.11 | 15 | ML:2.9 | Tehran Province, 4 km Damavand | ||
| 2011/12/01 | 07:48:09.8 | 11:18:09.8 | 35.19 | 52.05 | 16 | ML:3.6 | Semnan Province, 26 km West of Garmsar |