Data e Ora (ITItalia) Magnitudo Zona
1991-01-09 01:14:44 Md 2.2 1 km W San Cesareo (RM)
1991-01-12 04:47:47 Md 1.9 1 km E Oricola (AQ)
1991-01-19 05:00:54 Md 2.6 1 km SW Pozzaglia Sabina (RI)
1991-01-26 05:56:38 Md 2.7 2 km NE Marano Equo (RM)
1991-02-24 05:40:07 Md 2.7 E Vallepietra (RM)
1991-02-24 06:04:10 Md 2.7 1 km S Vallepietra (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)
1991-03-23 02:20:49 Md 2.3 2 km E Rocca di Botte (AQ)
1991-04-20 15:13:26 Md 2.5 4 km W Licenza (RM)
1991-04-26 00:19:09 Md 2.1 3 km S Colle di Tora (RI)
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)
1991-05-26 23:06:21 Md 2.3 3 km SW Longone Sabino (RI)
1991-06-22 15:05:57 Md 2.1 1 km NW Colonna (RM)
1991-06-29 07:58:48 Md 2.2 2 km E Roiate (RM)
1991-07-24 13:29:07 Md 2.4 1 km SE Affile (RM)
1991-07-25 06:27:19 Md 2.8 2 km SE Olevano Romano (RM)
1991-08-21 02:07:35 Md 2.4 1 km SE Olevano Romano (RM)
1991-09-09 03:25:52 Md 2.0 2 km W Serrone (FR)
1991-09-21 02:45:19 Md 2.1 6 km NW Colonna (RM)
1991-10-12 06:36:49 Md 2.4 3 km N Castel di Tora (RI)
1991-12-06 20:47:26 Md 2.2 3 km NW Colonna (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)
1991-12-07 09:25:20 Md 2.1 4 km S San Cesareo (RM)
1991-12-08 02:58:33 Md 2.2 2 km NE Rocca Priora (RM)
1991-12-08 11:12:10 Md 2.5 1 km NE Rocca Priora (RM)