Origin time (UTC) Magnitude Region
1991-03-04 17:04:26 Md 2.5 5 km S Cingoli (MC)
1991-03-09 17:26:21 Md 2.5 6 km NE Sigillo (PG)
1991-03-21 01:47:57 Md 2.6 7 km E Acqualagna (PU)
1991-04-08 08:58:00 Md 2.3 5 km SW Cingoli (MC)
1991-04-22 23:59:28 Md 2.8 6 km W Filottrano (AN)
1991-04-23 02:22:45 Md 3.1 1 km E Maiolati Spontini (AN)
1991-04-25 03:31:12 Md 2.3 4 km SE Poggio San Vicino (MC)
1991-04-29 10:38:41 Md 2.4 8 km SW Cingoli (MC)
1991-05-31 10:04:44 Md 2.2 4 km NE Genga (AN)
1991-06-15 09:22:43 Md 2.3 3 km SE Genga (AN)
1991-06-24 09:17:14 Md 2.4 7 km SW Sassoferrato (AN)
1991-06-28 17:09:52 Md 2.5 5 km S Cingoli (MC)
1991-07-09 15:10:31 Md 2.6 4 km S Serra San Quirico (AN)
1991-07-10 15:17:08 Md 2.1 3 km S Cingoli (MC)
1991-07-11 15:13:05 Md 2.4 7 km S Cingoli (MC)
1991-07-13 09:19:16 Md 2.4 3 km S Serra San Quirico (AN)
1991-07-18 09:27:34 Md 2.0 5 km S Cingoli (MC)
1991-07-23 14:04:45 Md 2.3 2 km W Serra San Quirico (AN)
1991-07-25 10:12:25 Md 2.0 5 km S Cingoli (MC)
1991-07-27 08:38:22 Md 2.3 6 km S Cingoli (MC)
1991-08-02 15:12:00 Md 2.7 4 km E Genga (AN)
1991-08-08 06:57:19 Md 2.4 3 km NW Frontone (PU)
1991-08-08 16:46:08 Md 2.5 5 km S Cingoli (MC)
1991-09-18 09:59:39 Md 2.4 7 km NE Gagliole (MC)
1991-09-26 04:04:58 Md 3.1 7 km W Esanatoglia (MC)
1991-10-10 11:18:21 Md 2.5 8 km SW Cingoli (MC)
1991-10-26 13:02:54 Md 2.2 5 km S Pergola (PU)
1991-11-13 11:14:24 Md 2.2 8 km SE Poggio San Vicino (MC)
1991-11-29 14:52:44 Md 2.3 1 km SW Maiolati Spontini (AN)
1991-12-23 15:49:04 Md 2.4 6 km SE Genga (AN)