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The $50 earthquake alarm that could save thousands of lives
November 21, 2014
From the
CNN: In September 1985 a devastating earthquake measuring 8.1 on the Richter Scale smashed into Mexico City killing 10,000 people and leaving parts of the city in ruins.
Since then, the populous Latin American nation of 122 million has invested in one of the most advanced seismic warning systems anywhere in the world.