A 4.0-magnitude earthquake centered in southern Maine shook businesses and houses in New England on Tuesday, sending tremors as far away as Connecticut. The rare quake, which was centered about 20 miles west of Portland and lasted for several seconds, caused little damage. "The whole house shook," said Saco, Maine, resident Sue Hadiaris. "It was very unnerving because you could feel the floor shaking. There was a queasy feeling." While uncommon, earthquakes on the East Coast can spread 10 times further than they would in the west, due to the region's geology.