| 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 |