What is the first action can execute during emergency?

Emergencies occurs in every field for an instance Electrical emergency occured due to which power failure happen in such situation our action will be as follows;

1.We will inform the superior/higher officials about the emergency.

2.Will divert our teams to the affected location to further analyse and control the situation with precautionary measures.

3.Later on depending upon the degree of damage will begin the corrective maintenance,