By Kendall Downing, WPSD – “On shaky ground. Two tremors in the New Madrid Seismic Zone this week have people wondering if a big earthquake could be coming.

The two are considered minor. No damage has been reported from either.

Thursday night’s quake struck around 7:27 local time. It was centered about six miles northeast of Caruthersville, Missouri and measured a 2.7 on the Richter Scale. Tuesday night a similar quake hit near Portageville, Missouri.

The U.S. Geological Survey considers the New Madrid Seismic Zone the most active in North America east of the Rockies.

But it’s been about 100 years since a major earthquake hit this area. Still, the two recent quakes are leaving behind some rattled nerves.

The only thing getting shaken Friday in Caruthersville, Missouri is the salad at Grandad’s Deli.

‘It’s a scary thought,’ said Sharon Russell, owner.

Russell said they were busy Thursday night and…