
| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2011/08/25 | 04:38:54.8 | 09:08:54.8 | 36.82 | 50.89 | 15 | ML:3 | Mazandaran Province, 0 km Tonekabon |

| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2011/08/25 | 04:38:54.8 | 09:08:54.8 | 36.82 | 50.89 | 15 | ML:3 | Mazandaran Province, 0 km Tonekabon |