Gladstone, New Jersey, skilled a magnitude 2.6 aftershock on Wednesday morning, in keeping with america Geological Survey (USGS). The aftershock occurred simply earlier than 10:30 a.m., simply after a exceptional 4.8-magnitude earthquake shook the East Coast on Friday morning.
The epicenter of the aftershock was close to Whitehouse Station in New Jersey, situated about 60 miles northeast of Philadelphia, with a depth of about 3 miles, in keeping with the USGS.
A number of aftershocks have been felt within the space all through the day, with specialists warning that aftershocks might be felt for per week after the preliminary quake.
Friday's earthquake marked the most important seismic occasion within the area since 1973. A 4.0 to 4.9 earthquake is assessed as gentle to average, and there are an estimated 13,000 earthquakes in that vary worldwide every year, in keeping with Penn State College knowledge . .
The strongest earthquake recorded within the Philadelphia space previous to Friday's occasion was a magnitude 4.6 earthquake in Sinking Spring, Berks County on January 16, 1994.
The affect of Friday's earthquake was broadly felt, with greater than 120,000 individuals reporting tremors to the USGS. Stories of tremors unfold from Delaware to Connecticut and as far north as upstate New York.