HindustanTimes : Hindustan Times : A powerful earthquake strikes off the Pacific coast of Mexico. Within seconds, radio transmissions, megaphones and smartphone apps blare warnings to the capital's 20 million people before the ground shakes.After the loud "seismic alert!" alarm, Mexico City residents have as much as a minute to flee their homes, offices and schools before buildings start to sway.But such technology was not available on September 19, 1985, when a massive 8.1-magnitude coastal quake rocked the metropolis, crushing buildings and killing thousands.Click Here To Read More.
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