Origin time (UTC) Magnitude Region
1990-10-07 06:45:49 Md 2.5 4 km S Pietralunga (PG)
1990-10-07 17:53:30 Md 2.0 5 km E Sigillo (PG)
1990-10-18 10:27:04 Md 2.2 3 km N Petriano (PU)
1990-10-25 01:09:37 Md 2.4 4 km E Cantiano (PU)
1990-11-24 03:56:25 Md 2.6 5 km E Cantiano (PU)
1990-11-26 22:02:20 Md 2.5 6 km SW Serra Sant'Abbondio (PU)
1990-12-03 18:12:05 Md 2.5 4 km SW Serra Sant'Abbondio (PU)
1991-01-19 10:29:32 Md 2.3 4 km NW Sassoferrato (AN)
1991-02-04 16:15:57 Md 2.0 1 km NW Acqualagna (PU)
1991-03-02 10:20:35 Md 2.3 4 km NW Sassoferrato (AN)
1991-03-03 02:47:59 Md 2.4 3 km W Cantiano (PU)
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)
1991-05-31 10:04:44 Md 2.2 4 km NE Genga (AN)
1991-06-04 01:14:26 Md 2.3 4 km SE Pietralunga (PG)
1991-06-09 19:25:42 Md 2.4 3 km SW Scheggia e Pascelupo (PG) ... (PG)
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)
1991-06-26 20:15:32 Md 2.8 3 km SW Montemaggiore al Metauro (PU) ... (PU)
1991-07-19 13:47:29 Md 2.2 4 km S Pietralunga (PG)
1991-07-19 23:26:10 Md 2.3 5 km NW Cagli (PU)
1991-07-23 14:04:45 Md 2.3 2 km W Serra San Quirico (AN)
1991-08-02 15:12:00 Md 2.7 4 km E Genga (AN)
1991-08-04 03:57:37 Md 2.4 2 km SW Gubbio (PG)
1991-08-08 06:57:19 Md 2.4 3 km NW Frontone (PU)
1991-08-18 19:26:27 Md 2.3 6 km SE Pietralunga (PG)
1991-09-21 13:42:12 Md 2.1 5 km NE Pietralunga (PG)
1991-09-28 17:55:58 Md 2.5 5 km N Gubbio (PG)
1991-10-26 13:02:54 Md 2.2 5 km S Pergola (PU)
1991-11-08 15:41:12 Md 2.1 6 km E Apecchio (PU)