earthquake affected the internet and global communication

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last dec 26, 2006, taiwan felt the 7.1 magnitude earthquake. in that case the underwater cable used for telecommunications have been destroyed affecting asian countries telecommunications. internet and phone communications around the world was interrupted. browsing the net makes to slow and calls are always network busy. much affected was business invloving the web. what should companies do in order not to happen these again? until now, they are still repairing the damage done the the earthquake.