Data e Ora (ITItalia) Magnitudo Zona
1989-12-30 23:17:36 Md 2.2 5 km NW Colonna (RM)
1990-01-07 02:53:19 Md 2.5 1 km N Monte Porzio Catone (RM)
1990-01-07 11:56:37 Md 2.4 4 km S Labico (RM)
1990-01-13 23:44:47 Md 2.2 3 km NW Colonna (RM)
1990-01-15 02:36:29 Md 2.3 1 km SW Colonna (RM)
1990-01-17 11:16:39 Md 2.0 4 km NW Frascati (RM)
1990-01-18 22:27:39 Md 1.9 1 km NW Colonna (RM)
1990-02-01 15:11:54 Md 2.2 1 km N Monte Compatri (RM)
1990-02-07 04:27:04 Md 2.2 7 km NW Colonna (RM)
1990-02-08 21:08:16 Md 2.1 4 km N Colonna (RM)
1990-02-10 21:24:44 Md 2.3 5 km NW Colonna (RM)
1990-02-20 23:30:42 Md 2.4 E Monte Compatri (RM)
1990-02-20 23:34:58 Md 2.3 6 km NW Colonna (RM)
1990-02-21 22:02:38 Md 2.1 4 km NW Colonna (RM)
1990-02-23 08:03:44 Md 2.6 2 km NE Rocca di Papa (RM)
1990-03-17 18:26:37 Md 2.3 1 km SW Rocca Priora (RM)
1990-03-23 10:33:01 Md 2.3 2 km SW Monte Porzio Catone (RM)
1990-04-01 21:54:42 Md 2.1 2 km S Fara in Sabina (RI)
1990-04-02 12:36:59 Md 2.2 2 km NW Monte Porzio Catone (RM)
1990-04-04 16:42:12 Md 2.1 7 km NW Colonna (RM)
1990-04-04 23:15:34 Md 2.1 6 km W Gallicano nel Lazio (RM)
1990-04-06 07:06:05 Md 2.2 5 km NW Colonna (RM)
1990-04-12 06:35:02 Md 2.0 5 km N Monte Porzio Catone (RM)
1990-04-20 14:34:00 Md 2.3 2 km E San Polo dei Cavalieri (RM) ... (RM)
1990-05-01 09:16:56 Md 2.3 3 km SE Pereto (AQ)
1990-05-09 07:16:50 Md 1.9 5 km NW Colonna (RM)
1990-06-06 04:26:53 Md 1.9 1 km NW Frascati (RM)
1990-06-10 05:18:29 Md 2.2 1 km S San Cesareo (RM)
1990-06-11 21:23:31 Md 2.2 2 km W Labico (RM)
1990-06-16 12:05:09 Md 2.8 3 km NW Licenza (RM)