(Harrisburg) -- The Pennsylvania Emergency Management Agency, or PEMA, says coordination after this week's earthquake went according to plan. The scope of Tuesday’s earthquake was small enough that PEMA allowed the various state agencies, like PennDOT, and the Public Utility Commission, to work independently to send out infrastructure status updates. Ruth Miller, a spokeswoman at PEMA, says the agency did not fully activate its joint information center. "Therefore, PennDOT handled their press release from their offices. The PUC handled their press release from their offices," she says. "They had public messages that they needed to get out, and they handled them." PEMA says damages resulting from the quake were minor –- a few reports of broken windows in residential buildings -- and the occurrences were not concentrated in any particular region. A spokesman for Exelon Nuclear, which operates three nuclear power plants in the state, says the facilities declared the lowest emergency alert level on Tuesday and returned to normal operations a few hours later.