| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2011/10/04 | 19:00:10.1 | 22:30:10.1 | 34.89 | 50.15 | 14 | ML:3 | Markazi Province, 24 km North-East of Tafresh |
| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2011/10/04 | 19:00:10.1 | 22:30:10.1 | 34.89 | 50.15 | 14 | ML:3 | Markazi Province, 24 km North-East of Tafresh |