TROY – Were you shaken up on Friday morning? Did you feel the earth move under your feet?

Hundreds of thousands of New Yorkers likely did feel the jolt of a 4.8 magnitude earthquake at 10:23 a.m., with a New Jersey epicenter.

According to RPI Geophysics Professor Steven Roeckert, compared to larger earthquakes seen around the world in recent years, 4.8 is a “pip squeak” event.

Roeckert reminds folks that because of the bedrock that is characteristic over a large portion of the eastern seaboard of the United States, we are not as susceptible to massive earthquakes like the ones seen in California or other Pacific Rim countries.

The quake that occurred Friday morning was the third largest in Upstate New York in the last 75 years.

“I would say it’s not out of the question that there could be more earthquakes,” Roeckert said. “I would tell people if you want to know what to be worried about, I would say, just be aware.”

“Normally here, living in New York and New Jersey, we don’t worry about our houses shaking because of an earthquake,” he said. “It’s more probable now than most days, but in terms of telling you exactly what’s going to happen (magnitude wise), nobody can do that.”