A Mysterious Blast in Moscow · Global Voices
Veronica Khokhlova

A very strange thing happened in Moscow today: at 2:08 PM, people all over the city felt and heard a really forceful blast. There was no official explanation, though one theory has it that this could've been a supersonic plane breaking the sound barrier somewhere near Moscow. Other theories offered by LiveJournal‘s Russian-language users include a flash mob during which everyone's talking about a loud explosion, and the arrival of Hamas following Vladimir Putin's recent invitation. Norvezhskiy Lesnoy has links to some of the LJ reports, reactions and discussions (RUS).