A Minor Earthquake Hit New York City. How Often Does That Happen?
Briefly

After about 45 minutes, firefighters informed the crowd that the building was safe and they could return to their apartments.
Usually these tremors go undetected, he said. Most people would not notice a 1.7 magnitude earthquake, Mr. Pratt said, but Tuesday's event originated relatively close to the earth's surface.
Read at www.nytimes.com
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