Data e Ora (UTC) Magnitudo Zona
1997-02-27 14:59:18 Md 3.1 2 km N Zerba (PC)
1997-03-02 01:58:55 Md 2.6 3 km SW Cerignale (PC)
1997-03-03 04:08:56 Md 2.5 1 km E Cerignale (PC)
1997-03-03 07:21:47 Md 2.7 1 km W Cerignale (PC)
1997-03-05 03:28:35 Md 2.8 3 km W Cerignale (PC)
1997-04-08 12:16:53 Md 2.5 1 km E Montemarzino (AL)
1997-09-07 05:11:48 Md 2.7 2 km E Capriata d'Orba (AL)
1997-10-23 12:46:02 Md 2.8 4 km SW Zerba (PC)
1997-12-02 07:16:53 Md 3.1 4 km SW Fabbrica Curone (AL)
1998-05-21 11:27:48 Md 2.8 1 km SE Borgoratto Mormorolo (PV) ... (PV)
1998-08-07 22:41:35 Md 2.2 1 km SE San Cristoforo (AL)
1999-06-04 20:45:14 Md 2.4 3 km W Ottone (PC)
1999-06-14 00:51:25 Md 2.5 2 km E Montemarzino (AL)
1999-06-20 22:44:27 Md 2.5 2 km W Spineto Scrivia (AL)
2000-01-20 05:29:41 Md 2.6 3 km W Romagnese (PV)
2000-09-09 20:50:38 Md 2.4 2 km NW Pozzol Groppo (AL)
2001-06-01 19:41:49 Md 3.1 5 km N Tortona (AL)
2001-06-03 04:14:30 Md 2.6 1 km NW Sarezzano (AL)
2001-06-13 22:10:03 Md 2.5 3 km SE Torrazza Coste (PV)
2002-01-02 13:03:28 Md 2.5 3 km NE Pontecurone (AL)
2002-07-20 04:09:36 Md 2.4 1 km N Ponte Nizza (PV)
2003-04-11 09:26:57 Md 4.5 1 km SE Cassano Spinola (AL)
2003-04-11 10:28:09 Md 2.7 1 km W Cassano Spinola (AL)
2003-04-11 10:53:01 Md 2.5 1 km N Stazzano (AL)
2003-04-11 12:02:14 Md 2.4 2 km SE Cassano Spinola (AL)
2003-04-12 00:13:10 Md 3.3 2 km E Novi Ligure (AL)
2003-04-12 00:27:29 Md 2.4 1 km NW Arquata Scrivia (AL)
2003-04-12 02:28:41 Md 2.2 1 km W Serravalle Scrivia (AL)
2003-04-13 23:55:47 Md 2.6 S Cassano Spinola (AL)
2003-04-18 07:08:13 Md 2.7 1 km SW Cassano Spinola (AL)