United States Department of Commerce
1970
<p>Long before the sun clears the eastern mountains of April 29, 1970, the savanna highlands of Chiapas tremble from a magnitude 6.7 earthquake centered off the Pacific coast near Mexico’s southern border. Then, for a few hours, he Isthmus of Tehuantepec is quiet.</p>
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4 Earthquake: Major offshore earthquakes recall the Aztec myth
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