one emp...
and...
no electicity...
no communication....
no banking...
no tv...no radio...
no petrol.....
no travel......
hy....is i overstating....
its more threating then a nuclear bomb....
Not quite true.
Modern electrical gird infrastructure is compartmentalized and modular. It has adequate fail safe and protections to avoid/mitigate damage if any and in event of damage precaution to avoid damage to neighboring grid.
I worst case scenario small section of grid will be affected not the entire grid.
Modern military equipment are EMP hardened hence probably survive. Even now days consumer electronics are EMP hardened. EMP hardening is not really difficult or even expensive.
Only devices that are switched on have poor EMP protection are susceptible like older analog electronics.
Why no banking??? Banking servers along with their network infrastructure are highly protected and secured to a point they are placed in Faraday's cage. Even big ISP have good EMP protection.
Why no communication??? Cell towers and their backbone infrastructure is highly resilient to EMP.
Please stop generalizing things and making incorrect claims. EMP is nothing more than a physiological terror weapon. If it was so great we would have seen mass deployment of the same.