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Midwestern United States
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United States
💡 On 9 November 1968, at 11:02 in the morning, the largest earthquake ever recorded in Illinois struck the Midwestern United States, measuring 5.3 on the Richter scale. Though no one was killed, the shaking toppled chimneys and rattled buildings as far away as Chicago, the region's largest city. It was felt across 23 states covering roughly 580,000 square miles, making it one of the most widely felt earthquakes in United States history.