There's a good chance the ground hasn't stopped shaking from the historic earthquake that rattled America's Northeast, according to a report Saturday.
The U.S. Geological Survey estimates a 60% probability of at least one more aftershock registering 3.0 magnitude or greater during the coming week, Fox Weather reported.
And that likelihood reportedly increases to 84% within the coming month.
More than a dozen aftershocks followed the 4.8 magnitude quake that struck near Whitehouse Station, New Jersey, at 10:23 a.m. Friday, Fox Weather said.
No casualties or major property damage were reported.
The strongest aftershock registered 3.8 magnitude around 6 p.m. Friday and was felt across northern New Jersey and the New York City area.
The most recent, a 2.5 magnitude temblor, was recorded around 6:46 a.m. Saturday and centered near Gladstone, New Jersey, according to the USGS website.
"Basically, you never have just one earthquake," San Diego State University geologist Pat Abbott told Fox Weather. "Once the Earth has fractured in someplace and moved, that means it's moved a lot of stress forward, which is going to cause adjoining areas to move as well."
Friday morning's earthquake was felt by nearly 43 million people from Maine to Maryland, according to the USGS.
It was the strongest with an epicenter in New Jersey since 1783.