Modern Communications

Modern Communications and SE tsunamis
It seems that using modern communication during a tragic time had its good and bad points.
Although it would seem faster and more efficient to use modern communication, in some ways it would do no good.

For those that lived in the less developed parts of Asia, they did not recieve the email that was sent out to warn people about the quake unlike those who live in the much more developed parts of Asia who have access to the internet.
Wouldn't it be easier to use a phone while fixed-line communication systems were still in good use?

After the quake hit, the fixed-line communication systems either failed or became overwhelmed.
However, for those who had access to mobile phones could easily send out and recieve messages to let everyone know they were okay. Emails and messages were sent across the world to inform others of what had happend.