Ready Dot Guess. episode 1

given the increasing drumbeat regarding an attack on iran, and the possibility of a pre-emptive pre-emptive strike, i'm going to run the occasional Public Service Announcement in the coming days - brought to you by the good folk at the Department of Homeland Security's Ready.gov.

Your mission, if you chose to accept it, is to try to interpret the helpful graphics from ready.gov

To ensure that i'm not accused of taking things out of context, I'll also tell you the 'category' of the attack. Today's entry is listed under "Explosions". What advice is embedded in this sign?