Just came across an article as it will appear in tomorrow's NY Times Sunday edition:
A moderately powerful earthquake rumbled up the Eastern Seaboard yesterday, causing no injuries but damaging roads and breaking windows in upstate New York while shaking people out of sleep from Maine to Maryland.
The quake, which struck at 6:50 a.m., had a magnitude of 5.1 with its epicenter about 15 miles southwest of Plattsburgh, N.Y., according to the United States Geological Survey's National Earthquake Information Center.
It could be felt as far away as Boston in the east, the Canadian border to the north, west to Buffalo and as far south as Baltimore, a statement released by the center said.
In Brooklyn, it felt as if the subway train were rolling by. Gov. George E. Pataki said he could feel the quake in the Executive Mansion in Albany.
By noon yesterday, Clinton and Essex Counties in upstate New York had declared states of emergency as officials there received reports of damage including water main breaks, collapsed roads and fallen chimneys.
A 200-foot portion of Route 9N collapsed in the town AuSable, 12 miles south of Plattsburgh, and County Road 39 in nearby Harkness was also damaged, said Don Maurer, the spokesman for the State Emergency Management Office.
Mr. Maurer said about 1,500 people in the town of Jay lost power for a few hours. He added that the State Department of Transportation would begin checking all roads and bridges in the area around the epicenter. Several dams in the region had already been checked, he said, and were found to be undamaged.
Hannah Deming, 40, lives in Keeseville, a few miles from the epicenter. She had just sat down to have a morning cup of coffee with her husband, Jon, when she heard a sudden, terrible racket that sounded, she said, like a furnace about to explode.
"There were these incredible pops and bangs," Mrs. Deming recalled. "It sounded like the house was about to blow."
Although some witnesses said the tremors lasted no more than 30 seconds, Mrs. Deming said they went on for perhaps two minutes long enough for her husband to place their daughter Grace in the car, run back inside the house for a cellphone, come out again, and run back in for the car keys. The quake, she said, had cracked their concrete-block house from foundation to roof.
Barbara Earle was visiting her cousin Brian Bourgeois at his refurbished farmhouse up the road from the Demings' home. "This old house shook good," Ms. Earle said. "We definitely felt it.
"We've got family in Syracuse and Long Island, and they both called. Both of them felt this thing where they were, too."
In October, an earthquake with a magnitude of 2.6 was recorded in New York City, with its epicenter on the east side of Manhattan, just north of the Queensboro Bridge.
Dr. Frank Revetta, a professor of geology at the State University of New York College at Potsdam, said there had not been an earthquake so large in the Plattsburgh area since 1983. That year, a quake similar to yesterday's struck near Blue Mountain Lake, he said.
The Plattsburgh area, Dr. Revetta said, is in what is known as the Northern New York-Western Quebec Seismic Zone, a belt of land that extends from the Adirondacks into Canada and is given to small earthquakes that typically measure a magnitude of 2 to 4.
Dr. Revetta said yesterday's quake provided him a chance to feel personally the effects of a decent-size earthquake.
"It was actually kind of scary," he said. "The house just kept shaking and shaking and shaking."