How will you communicate and circulate an emergency information at a busy workplace?

must be different alternative

email

sms message

Email is the best way to circulate an emergency official information. Train your staff to be updated through emails and communicate through it.

It depends upon type of emergency.

If it is other than hazardous emergency where physical , human loss is not involved.

Take time , use mail , SMS etc.

If it is emergency related to hazardous nature , make  clear and immediate announcement along with precautionary measures ,

Call emergency services.

Guide people to the safe place. 

Thanks for Invitation:

My answer is:

1) Having two way communication is important the sender should be able to send and receive the message. 

2) Sending Mass Emails.

3) SMS is one of the form of communication.

4) Information can be given through company intranet.

5) Last but not the lease an Emergency Alarm.