Origin time (UTC) Magnitude Region
1991-06-05 04:53:49 Md 2.8 2 km N Monte Cavallo (MC)
1991-06-07 14:15:27 Md 2.2 4 km N Serravalle di Chienti (MC) ... (MC)
1991-06-22 21:10:18 Md 3.1 1 km S Monte Cavallo (MC)
1991-06-28 17:09:52 Md 2.5 5 km S Cingoli (MC)
1991-07-11 12:49:09 Md 3.2 3 km NW Preci (PG)
1991-07-11 15:13:05 Md 2.4 7 km S Cingoli (MC)
1991-07-16 09:07:34 Md 2.1 3 km SE San Ginesio (MC)
1991-07-17 02:55:16 Md 2.9 3 km W Monteleone di Fermo (FM)
1991-07-18 09:27:34 Md 2.0 5 km S Cingoli (MC)
1991-07-20 09:19:07 Md 2.0 4 km S Bolognola (MC)
1991-07-21 05:45:21 Md 2.4 2 km NW Monteleone di Fermo (FM)
1991-07-23 22:16:17 Md 2.8 3 km N Santa Vittoria in Matenano (FM) ... (FM)
1991-07-24 01:15:41 Md 2.4 2 km SE Servigliano (FM)
1991-07-25 10:12:25 Md 2.0 5 km S Cingoli (MC)
1991-07-25 18:50:51 Md 2.2 3 km E Venarotta (AP)
1991-07-25 21:45:44 Md 2.5 3 km W Monteleone di Fermo (FM)
1991-07-27 04:20:53 Md 2.1 3 km NW Santa Vittoria in Matenano (FM) ... (FM)
1991-07-27 08:38:22 Md 2.3 6 km S Cingoli (MC)
1991-07-27 23:29:42 Md 2.1 4 km N Pievebovigliana (MC)
1991-07-31 01:57:04 Md 2.0 1 km W Pieve Torina (MC)
1991-08-06 11:31:02 Md 3.0 2 km W Servigliano (FM)
1991-08-08 16:46:08 Md 2.5 5 km S Cingoli (MC)
1991-09-01 00:36:19 Md 2.4 1 km E Monte Cavallo (MC)
1991-09-04 03:21:15 Md 2.4 1 km NE Monte Rinaldo (FM)
1991-09-18 09:59:39 Md 2.4 7 km NE Gagliole (MC)
1991-10-10 11:18:21 Md 2.5 8 km SW Cingoli (MC)
1991-10-18 04:45:03 Md 2.4 4 km SE Monte Cavallo (MC)
1991-10-19 10:22:00 Md 2.5 4 km NW Visso (MC)
1991-11-12 21:45:55 Md 3.1 3 km SW Comunanza (AP)
1991-11-12 22:55:40 Md 2.4 3 km NE Montemonaco (AP)