When the Hanagumi's theatre is self-destructed after it was invaded by the demons, the explosion is shown to shake the underground tunnel though which the Hanagumi is escaping and also to rock the city area the theatre is located in in a big flash of light. Knowing how close the building was to other buildings, and how exploding buildings tend to cause a lot of collateral damage unless perfectly controlled*
and even then things may go horribly wrong
, there must have been terrible civilian causaulties in the surrounding area. Yet those are never shown.