Origin time (ITItaly) Magnitude Region
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)
1990-07-13 23:52:38 Md 2.5 2 km S Ciampino (RM)
1990-07-29 05:06:04 Md 2.0 3 km NW Colonna (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 18:43:32 Md 2.1 4 km NE Nemi (RM)
1990-09-14 15:09:23 Md 2.3 6 km N Ciampino (RM)
1990-09-14 15:10:04 Md 2.2 1 km SW Rocca Priora (RM)
1990-09-14 15:37:29 Md 2.3 6 km S Guidonia Montecelio (RM)
1990-09-21 01:45:16 Md 1.8 9 km S Roma (RM)
1990-09-21 01:45:58 Md 2.1 13 km NW Pomezia (RM)
1990-09-21 01:57:33 Md 1.9 3 km N Ciampino (RM)
1990-09-21 03:45:48 Md 2.0 13 km SW Roma (RM)
1990-10-29 23:26:47 Md 2.2 2 km SE Zagarolo (RM)
1990-11-25 19:28:00 Md 2.3 4 km S Tivoli (RM)
1991-01-09 01:14:44 Md 2.2 1 km W San Cesareo (RM)
1991-01-09 19:25:46 Md 2.0 4 km NW Ciampino (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)
1991-01-30 01:51:09 Md 1.9 1 km E Grottaferrata (RM)
1991-03-02 23:20:49 Md 3.1 3 km S Monteflavio (RM)
1991-03-08 01:36:38 Md 2.3 1 km N Mandela (RM)
1991-03-17 21:39:19 Md 2.2 4 km E Palombara Sabina (RM)
1991-04-18 06:59:04 Md 2.2 2 km W Albano Laziale (RM)
1991-04-20 15:13:26 Md 2.5 4 km W Licenza (RM)
1991-04-28 04:56:13 Md 2.2 2 km W Licenza (RM)
1991-05-16 00:37:25 Md 2.2 2 km N San Polo dei Cavalieri (RM) ... (RM)
1991-06-22 15:05:57 Md 2.1 1 km NW Colonna (RM)
1991-09-10 09:23:37 Md 2.5 1 km E Genzano di Roma (RM)