event begin max end class region ----- ----- ----- ----- ----- ------ 8500 03:44 03:53 04:01 B3.4 8500 04:00 04:04 04:08 B4.0 8510 06:08 06:14 06:21 B3.6 8520 08:27 08:32 08:36 B2.1 8530 11:47 11:54 11:58 B2.0 8530 11:58 12:04 12:11 B4.6 8540 16:55 17:02 17:06 B2.4