| Prel. Rep. | Date | Time(UTC) | Time(Local) | Lat. | Lon. | Depth | Mag. | Region | Waveform |
| 2018/12/28 | 21:31:46.4 | 01:01:46.4 | 36.575 | 51.072 | 15 | ML:2.5 | Mazandaran Province, 31 km South-East of Tonekabon | ||
| 2018/12/23 | 05:38:17.5 | 09:08:17.5 | 36.684 | 49.833 | 15 | ML:3.8 | Gilan Province, 52 km South of Siahkal | ||
| 2018/12/18 | 17:53:27.1 | 21:23:27.1 | 35.363 | 52.47 | 14 | ML:2.8 | Semnan Province, 20 km North-East of Garmsar | ||
| 2018/12/10 | 10:05:57.7 | 13:35:57.7 | 35.92 | 51.96 | 17 | ML:2.7 | Mazandaran Province, 25 km North-West of Damavand | ||
| 2018/12/10 | 10:05:14.7 | 13:35:14.7 | 35.977 | 52 | 6 | ML:2.7 | Mazandaran Province, 30 km North of Damavand | ||
| 2018/12/04 | 22:52:05.0 | 02:22:05.0 | 35.966 | 52.284 | 8 | ML:2.5 | Mazandaran Province, 34 km North-East of Damavand |
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