I also found the following information on another website about where earthquakes can occur. I had heard before about the possiblily of earthquakes in the norheast. We even had a small earthquake here in west Texas/New Mexico a few years back, it just a small quake, 3.0 I think, and wasn't felt here in Dallas.
here's the info:
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http://www.geo.mtu.edu/UPSeis/area.html
Earthquakes In The Midwestern and Eastern United States??!!
Most people think that earthquakes occur only in places like California, Alaska, and Japan. This couldn't be further from the truth. Several major and numerous minor earthquakes have occurred in the midwestern and eastern United States, as well as eastern Canada. Some of the earthquakes that have caused notable damage in these areas are listed below.
1663 & 1870 - St. Lawrence River region, Canada
1755 - Boston/Cape Ann, Massachusetts. Earthquake estimated to be magnitude 6.0; buildings damaged.
1811 & 1812 - New Madrid, Missouri, experienced the three largest earthquakes known to have occurred in North America (magnitudes estimated between 7.2 and 8.3) and 203 damaging aftershocks. Soil liquefaction occurred.
1886 - Charleston, South Carolina. Estimated magnitude 6.8. Soil liquefaction occurred. Extensive damage; 60 people or more died. Over 400 aftershocks over the next 30 years.
1895 - Charleston, Missouri
1897 - Giles County, Virginia
1884 - New York City area
1931 - Valentine, Texas, had a magnitude 6.4 earthquake, the largest earthquake to hit Texas in historic times.
1935 - Timiskaming, Ontario (Canada)
1947 - Michigan experienced a magnitude 4.4 earthquake.
1979 & 1980 - New York State and the adjacent areas experienced 131 earthquakes of magnitude 1 to 5.
1980 - 5 earthquakes recorded north of Philadelphia, Pennsylvania.
1980 - Kentucky shaken by a magnitude 5.1 earthquake.
1982 - New Brunswick, Canada, had a magnitude 5.7 earthquake.
1982 - Arkansas earthquake swarm starts. Eighty-eight earthquakes between June 24 and July 5, 1982. Four earthquakes with magnitudes of 4.0 to 4.5 during first 3 months of swarm. Total of about 40,000 earthquakes in the area (most very small or not felt) between 1982 and 1985.
1983 - Lake Charles, Louisiana, experienced a magnitude 3.8 earthquake.
1983 - Indiana had a magnitude 5.9 earthquake.
1986 - Painesville, Ohio, experienced a magnitude 4.9 earthquake and several aftershocks. The earthquake was felt in 11 states.
1987 - Southeastern Illinois experienced a magnitude 5.2 earthquake. This area has had 7 earthquakes of magnitude 4.5 or greater since 1892.
Over 900,000 earthquakes occur worldwide each year. Fortunately, the vast majority of them are magnitude 2.5 or less, and great earthquakes (magnitude 8.0 or more) only happen about once every 5 to 10 years. Most of these great quakes occur along the plate boundaries, not in the eastern and midwestern U.S.
A few areas of the midwestern and eastern United States are more prone to earthquakes than others. The most earthquake-prone areas include Charleston, South Carolina, eastern Massachusetts, the St. Lawrence River area, and the central Mississippi River Valley. Others sections of this part of the country are prone to earthquakes, but can expect fewer quakes of smaller magnitude. Below is a map showing the risk of damage by earthquakes for the continental United States.
(Modified from Stearns & Miller, 1977)
The central Mississippi River Valley and the Charleston, South Carolina, are more prone to damage during earthquakes than the northern part of the country. These areas have sandy soils that shake more than solid rock, resulting in damage from subsidence during an earthquake. The high water tables along the Mississippi and near the coast also increase the risk of soil liquefaction during strong earthquakes.
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Reality is merely an illusion, albeit a very persistent one.
-Albert Einstein
[This message has been edited by ABEL (edited 04-20-2002).]