From Tampa Bay 10:
Another eatthquake [sic] rattles New Jersey
Another minor earthquake occured [sic] Wednesday morning in New Jersey. This is the fourth earthquake measured in north central New Jersey since February 14, 2009.
The latest earthquake occured [sic] on February 17, 2009 at 1:42 a.m. EST and measured a 2.3 on the Richter scale. It was centered roughly 3.1 miles below the town of Victory Gardens, NJ. No damage or injuries were reported.
Earthquakes in the eastern U.S. typically occur less frequently than the west coast, but because of the geomorphic make up of east coast, those earthquakes can be felt further away. East of the Rockies, an earthquake can be felt over an area as much as ten times larger than a similar magnitude earthquake on the west coast.
The northeast U.S. urban corridor is laced with known faults, but numerous smaller or deeply buried faults remain undetected. As a result, it is even more difficult to determine what faults east coast earthquakes originate from.