Earthquakes on the East Coast are rare but sea level rise and frequent flooding may lead to a higher frequency of quakes. But here's why you shouldn't be alarmed. "An earthquake is based on tectonic plates, and New York is sitting on a 'lazy' plate, which is good, meaning we do not have so many earthquakes, but there are other things that happen -- too much rain or drought," Dr. Marsellos told NBC New York. Long periods of flooding can cause water levels to rise leading to possible landslides. Those slides can "lubricate" faults and may account for a higher...