Yesterday a 3.3 magnitude earthquake gently rocked Union City, Michigan just 13 miles southeast of Battlecreek. No damage was reported. The second earthquake in Michigan within two months, had residents feeling the shifting as far south as northern Indiana and as far north as Holland.
Due to Michigans relatively low seismic activity, experts are puzzled that Tuesdays earthquake was not on the same fault line as the May 4th quake. The speculation is that the two earthquakes ARE related as stored energy in the earths crust; as one moves it puts pressure on the other.
Not much is known about how seismic activity is being started in Michigan, but if the quake trend continues we can expect to have more resources studying our tectonic movement.