Shiveluch May 30, 2012 - two different events

Looks like two small ash clouds.

One occurred before 01:42 UTC and went to WSW

One around 11:00 UTC (see webcam) and went E.

Event 1

01:42 UTC

03:27 UTC

03:53 UTC

Event 2

Webcam at 11:16 UTC

13:52 UTC

15:28 UTC

Both events show small sized cloud, BTD signal occurred and triggered our alarms to be able to view and analyze the data.