Notice of a public hearing shall be given not less than 10 days prior to the date of the hearing by publication in at least one newspaper of general circulation within the city, which notice shall contain the date, time and place of the public hearing, the identity of the hearing body (planning commission or city council), a general explanation of the matter being considered, and a general description, either in text or by diagram, of the location of the real property, if any, which is the subject of the hearing.