event begin max end class region ----- ----- ----- ----- ----- ------ 9920 00:10 00:15 00:20 C1.0 9950 03:29 03:32 03:36 B6.1 9990 10:21 10:41 10:47 M1.5 1817 0050 17:53 17:57 18:05 B6.6 1817