GALESBURG, MI — A 4.2 magnitude earthquake caused minor building damage in and around Galesburg, the closest city to the epicenter, officials said Saturday afternoon.

The most serious impact was a gas leak at the Target distribution center not far from the quake epicenter between Scotts and Galesburg.

“Knock on wood, we’re doing well so far,” Galesburg Police Jeff Heppler said. “But people here are not used to earthquakes, so it has people on edge.”

His biggest worry is hidden infrastructure problems.

“They sometimes take a couple days to surface, things like gas and water leaks, so it’s really critical for people to keep an eye out for that,” Heppler said. “If you see or smell anything, call 911 immediately.”

RELATED: Complete MLive coverage of the Michigan earthquake

Kalamazoo County Sheriff Richard Fuller, who went to Galesburg on Saturday to confer with Heppler, said the county’s 911 system was “inundated” with calls after the quake hit.

“We’re out now looking at cracks” and accessing other minor damage, he said.

One of the buildings with minor damage in downtown Galesburg was the Checkered Past Cycle shop.

Stephanie Tackett, who owns the shop with her husband and son, said all three were in the shop with an intern and a customer when the quake struck.

“The building made this noise, like a rumbling or a roar,” she said. “It was a definite noise. … You felt that bad things could happen.”

The five rushed outside and “everybody was running out of their buildings, up and down the street,” she said. “Everybody felt it.”

Her building, which was built in the 1960s, ended up with new cracks around its foundation.

Frederick Nicholl, who lives in downtown Augusta, said he lost some bricks from his chimney in the quake.

“It was some pretty good shaking, about 30 seconds worth,” he said.

Justin Woods said he was in a mobile home park in Galesburg when the quake occurred. “Everybody in the trailer park freaked out,” he said.”They thought it was a gas explosion, and they were trying to figure out what it was.”

The memorial service for Kenny Oliver, a 48-year-old Galesburg resident who died Sunday, was about to start at the Galesburg Community Center when the building started to shake.

“It’s my husband calling me from heaven,” Theresa Oliver said she told those around her. “He’s saying hello.”

Julie Mack covers K-12 education and writes a column for Kalamazoo Gazette. Email her at jmack1@mlive.com, call her at 269-350-0277 or follow her on Twitter @kzjuliemack