I found a MSM report that the "Kiev bombing" happened "shortly after dawn". Dawn was ~6:30am Kiev time. My recording ended at ~6am EDT this morning, so I have a sound record, if Kiev, from about 10pm EDT to 6am EDT. When I checked the record for "shortly after dawn" Kiev time, I did find some sound blips (sections of the recording that are noticeably louder than background) that could have been due to an explosion, but the sound quality is just not that good. It's too bad I didn't have a recording of the discussion comments that people post, because if there had been an audible "boom", I'm sure someone would have commented on it (and maybe they did).