What are Hurricane, typhoon, cyclones? same storm, just different names.

 Good Read : 

http://thevane.gawker.com/what-is-the-difference-between-a-cyclone-typhoon-and-1617803648

a hurricane/typhoon/cyclone generally has winds stronger than 74 MPH (~124 Km/hr)

India - Cyclone, Japan -Typhoon, USA - Hurricane