Data e Ora (ITItalia) Magnitudo Zona
1990-03-23 10:33:01 Md 2.3 2 km SW Monte Porzio Catone (RM)
1990-03-23 22:37:02 Md 2.2 2 km W Rocca di Papa (RM)
1990-03-25 14:35:21 Md 2.2 4 km S Ciampino (RM)
1990-03-30 02:55:40 Md 2.2 2 km W Rocca di Papa (RM)
1990-06-10 05:18:29 Md 2.2 1 km S San Cesareo (RM)
1990-06-10 17:39:52 Md 2.6 2 km NW Castel Gandolfo (RM)
1990-06-30 01:33:42 Md 2.5 W Ariccia (RM)
1990-07-01 06:10:28 Md 2.4 1 km SE Rocca Priora (RM)
1990-07-05 13:30:22 Md 2.3 4 km S Velletri (RM)
1990-07-13 23:52:38 Md 2.5 2 km S Ciampino (RM)
1990-07-31 05:41:16 Md 2.2 1 km SE Castel Gandolfo (RM)
1990-08-24 11:51:09 Md 2.6 1 km W Rocca Priora (RM)
1990-08-29 18:35:01 Md 2.4 3 km E Nemi (RM)
1990-08-29 18:43:32 Md 2.1 4 km NE Nemi (RM)
1990-09-10 02:11:35 Md 3.2 5 km SE Lanuvio (RM)
1990-09-14 15:10:04 Md 2.2 1 km SW Rocca Priora (RM)
1990-10-21 01:50:08 Md 2.2 1 km W Velletri (RM)
1991-01-09 01:14:44 Md 2.2 1 km W San Cesareo (RM)
1991-01-12 13:44:02 Md 2.1 1 km NE Ariccia (RM)
1991-01-13 06:39:45 Md 2.4 2 km SE Frascati (RM)
1991-02-06 22:47:16 Md 2.3 6 km E Velletri (RM)
1991-02-23 03:00:45 Md 2.4 3 km SW Genzano di Roma (RM)
1991-04-07 22:41:20 Md 2.1 4 km SE Velletri (RM)
1991-04-18 06:59:04 Md 2.2 2 km W Albano Laziale (RM)
1991-07-08 02:27:59 Md 2.1 1 km NE Lanuvio (RM)
1991-09-10 09:23:37 Md 2.5 1 km E Genzano di Roma (RM)
1991-10-14 20:50:21 Md 2.7 3 km S Lariano (RM)
1991-12-07 07:51:24 Md 2.8 1 km NE San Cesareo (RM)
1991-12-07 08:19:46 Md 2.3 2 km NE Rocca Priora (RM)
1991-12-07 09:15:30 Md 2.0 2 km S San Cesareo (RM)