| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2006/04/21 | 02:47:43.8 | 06:17:43.8 | 37.59 | 54.44 | 46 | ML:3 | 63 km North of Aq Qaleh, Golestan Province |
| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2006/04/21 | 02:47:43.8 | 06:17:43.8 | 37.59 | 54.44 | 46 | ML:3 | 63 km North of Aq Qaleh, Golestan Province |