Data e Ora (UTC) Magnitudo Zona
1990-11-24 18:48:52 Md 2.4 6 km NW Tredozio (FC)
1990-12-18 17:18:10 Md 2.4 6 km SW Castel del Rio (BO)
1991-01-07 14:25:36 Md 3.0 2 km NW Galeata (FC)
1991-02-20 13:53:30 Md 3.3 3 km S Russi (RA)
1991-02-20 18:58:10 Md 2.4 6 km SE Faenza (RA)
1991-03-23 18:10:50 Md 2.8 3 km SE Solarolo (RA)
1991-03-29 14:37:55 Md 2.5 7 km W Forlì (FC)
1991-05-18 21:27:45 Md 2.7 5 km SW Cotignola (RA)
1991-05-19 08:55:58 Md 2.2 7 km E Monterenzio (BO)
1991-07-14 04:29:51 Md 2.5 1 km SW Borgo Tossignano (BO)
1991-07-22 18:02:23 Md 2.3 2 km NE Riolo Terme (RA)
1991-08-03 14:26:22 Md 2.3 1 km SW Palazzuolo sul Senio (FI) ... (FI)
1991-08-10 17:11:56 Md 2.3 3 km W Solarolo (RA)
1991-08-15 17:39:53 Md 2.4 3 km NW Castel Guelfo di Bologna (BO) ... (BO)
1991-08-28 21:11:37 Md 2.2 3 km S Tredozio (FC)
1991-09-08 05:08:20 Md 2.0 7 km SW Marradi (FI)
1991-09-09 14:45:41 Md 2.3 4 km E Modigliana (FC)
1991-09-22 06:26:19 Md 2.2 4 km NW Castrocaro Terme e Terra del Sole (FC) ... (FC)
1991-09-30 20:01:04 Md 2.4 3 km N Modigliana (FC)
1991-10-03 11:16:13 Md 2.5 7 km SW Castel del Rio (BO)
1991-10-26 07:09:15 Md 2.2 6 km E Monterenzio (BO)
1991-10-26 15:11:10 Md 2.0 2 km W Forlimpopoli (FC)
1991-11-01 23:43:54 Md 2.4 4 km W Forlimpopoli (FC)
1991-11-02 02:42:43 Md 2.1 3 km NW Forlimpopoli (FC)
1991-11-08 23:26:31 Md 2.0 5 km NE Forlì (FC)
1991-11-09 01:17:50 Md 2.3 6 km SW Tredozio (FC)
1991-11-15 16:32:08 Md 2.5 6 km E Modigliana (FC)
1991-11-26 04:07:16 Md 1.8 1 km NE Modigliana (FC)
1991-11-26 04:07:33 Md 2.1 5 km NW Tredozio (FC)
1991-12-23 07:39:37 Md 3.2 3 km SE Castel del Rio (BO)