event begin max end class region ----- ----- ----- ----- ----- ------ 1880 01:44 02:01 02:30 C1.8 1910 08:25 08:38 08:56 C1.1 1920 16:39 16:53 17:23 C3.7 1970 19:37 20:43 21:40 C7.1 1990 23:17 23:26 23:37 C2.3 4271