| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2011/04/28 | 04:21:35.2 | 08:51:35.2 | 36.41 | 50.64 | 14 | ML:2.8 | Ghazvin Province, 43 km North-East of Abyek | ||
| 2011/04/10 | 20:27:46.9 | 00:57:46.9 | 35.46 | 52.07 | 14 | ML:2.8 | Semnan Province, 29 km South of Damavand | ||
| 2011/04/06 | 12:12:26.4 | 16:42:26.4 | 35.51 | 51.95 | 14 | ML:3.9 | Semnan Province, 25 km East of Pakdasht |