Origin time (ITItaly) Magnitude Region
1990-11-28 13:25:02 Md 2.0 5 km S Cingoli (MC)
1990-12-03 19:12:05 Md 2.5 4 km SW Serra Sant'Abbondio (PU)
1991-01-16 13:40:47 Md 2.4 5 km SE Cingoli (MC)
1991-01-19 11:29:32 Md 2.3 4 km NW Sassoferrato (AN)
1991-02-14 05:00:17 Md 2.6 3 km S Castelraimondo (MC)
1991-03-01 03:11:18 Md 2.9 5 km W Poggio San Vicino (MC)
1991-03-01 03:44:57 Md 2.5 3 km SW Poggio San Vicino (MC)
1991-03-02 11:20:35 Md 2.3 4 km NW Sassoferrato (AN)
1991-03-04 18:04:26 Md 2.5 5 km S Cingoli (MC)
1991-03-09 18:26:21 Md 2.5 6 km NE Sigillo (PG)
1991-03-21 02:47:57 Md 2.6 7 km E Acqualagna (PU)
1991-04-08 10:58:00 Md 2.3 5 km SW Cingoli (MC)
1991-04-23 01:59:28 Md 2.8 6 km W Filottrano (AN)
1991-04-23 04:22:45 Md 3.1 1 km E Maiolati Spontini (AN)
1991-04-25 05:31:12 Md 2.3 4 km SE Poggio San Vicino (MC)
1991-04-29 12:38:41 Md 2.4 8 km SW Cingoli (MC)
1991-05-31 12:04:44 Md 2.2 4 km NE Genga (AN)
1991-06-09 21:25:42 Md 2.4 3 km SW Scheggia e Pascelupo (PG) ... (PG)
1991-06-15 11:22:43 Md 2.3 3 km SE Genga (AN)
1991-06-24 11:17:14 Md 2.4 7 km SW Sassoferrato (AN)
1991-06-28 19:09:52 Md 2.5 5 km S Cingoli (MC)
1991-07-09 17:10:31 Md 2.6 4 km S Serra San Quirico (AN)
1991-07-10 17:17:08 Md 2.1 3 km S Cingoli (MC)
1991-07-11 17:13:05 Md 2.4 7 km S Cingoli (MC)
1991-07-13 11:19:16 Md 2.4 3 km S Serra San Quirico (AN)
1991-07-18 11:27:34 Md 2.0 5 km S Cingoli (MC)
1991-07-23 16:04:45 Md 2.3 2 km W Serra San Quirico (AN)
1991-07-25 12:12:25 Md 2.0 5 km S Cingoli (MC)
1991-07-27 10:38:22 Md 2.3 6 km S Cingoli (MC)
1991-08-02 17:12:00 Md 2.7 4 km E Genga (AN)